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Conraua Theraphosa Electrophorus Ornithorhynchus 512

—

by

Dale
in

Original Component Life Forms

The following individual organisms from four distinct major classes within the Animalia Kingdom have been selected and merged to construct this feral creature:

  • Class Amphibia: Goliath Frog (Conraua goliath)
  • Class Arachnida: Goliath Birdeater (Theraphosa blondi)
  • Class Actinopterygii (Ray-finned Fishes): Electric Eel (Electrophorus electricus)
  • Class Mammalia: Duck-billed Platypus (Ornithorhynchus anatinus)

Species Nomenclature and Classification

  • Unique Species Name: Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512
  • Taxonomic Status: Feral Gestalt-Form (Unpossessed Primitive Mind)

Biological Profiles and Mechanical Specifications

  • Appearance:
    • The creature possesses the massive, muscular hind legs and slick, mottled-green torso of a goliath frog, built for explosive, leaping propulsion.
    • Its upper body features eight multi-jointed, bristling arachnid limbs sprouting from its flanks, coated in thick, urticating hairs that shift dynamically to assist in climbing and pinning prey.
    • Running down the entirety of its elongated dorsal spine and tail is the smooth, scaleless skin of an electric eel, packed with specialized electroplax organs that ripple with visible blue bio-electricity.
    • The face is uniquely unsettling: a broad, sensitive, rubbery platypus bill replaces the jaw, fringed with tiny, pulsing electro-receptors and concealing a pair of sharp, bony crushing plates inside.
    • The hind legs are equipped with hollow, calcified ankle spurs capable of secreting a debilitating paralytic venom during close-quarters grappling.
  • Size: Large (Measures roughly 6 feet in length from bill to tail-tip, standing 3 feet off the ground when crouched; weighs approximately 160 pounds).
  • Speed: Maximum ground movement speed is 20 feet per turn. Swimming speed is 40 feet per turn. Leaping distance covers up to 30 feet horizontally or 15 feet vertically.
  • Stat Modifiers:
    • Strength: +3 (Powerful crushing bite and violent, leaping impacts).
    • Dexterity: +2 (Amphibious swimming grace and multi-limbed climbing agility).
    • Constitution: +4 (Thick, rubbery hide and high immunity to electrical currents).
    • Intelligence: -4 (Driven entirely by low-level territorial traps and primal hunger loops).
    • Wisdom: +3 (Exceptional electro-reception and vibration detection in murky water).
    • Charisma: -4 (Bizarre, grotesque, and visually alien presentation to surface humanoids).
  • Skills:
    • Trained Skill: Athletics +5 (Expertise in explosive leaping and high-velocity swimming).
    • Trained Skill: Stealth +4 (Utilizes muddy water column camouflage to mask its electric hum).
    • Natural Senses: Electro-Reception (Bypasses conventional blindness penalties while submerged or in mud, detecting living nervous systems up to 30 feet away).
  • Behavior:
    • A patient, submerged ambush predator that spends its days buried in thick river mud or clinging to low-hanging mangrove roots with its arachnid limbs.
    • When hunting, it uses its sensitive bill to scan for the bio-electric signatures of prey traveling through the water column or walking along the shoreline.
    • If threatened, it emits a low, vibrating croak that charges the surrounding water with a pre-emptive static shock before launching itself forward in a high-velocity leap.
  • Diet: Carnivorous Predator. It preys on large river crabs, water birds, swamp rodents, and unwary humanoids wading through muddy shallows.
  • Emotions:
    • Largely stoic, phlegmatic, and driven by low-energy conservation loops until provoked.
    • It expresses territorial annoyance by clicking its platypus bill rapidly and releasing bright, arc-lightning discharges from its tail.
  • Environment Where Found:
    • Inhabits the murky, slow-moving river basins, mangrove swamps, and flooded cavern networks scattered across the 73 island nations.
    • It requires highly conductive, muddy water to effectively utilize its sensory array and hunting tactics.
  • Tags: Feral, Gestalt-Form, Amphibious-Leaper, Electro-Receptive, Bio-Electric-Spine, Venomous-Spurs, Urticating-Hairs, Ambush-Lurker, Submerged-Amphibian,
    Bio-Electric-Discharge, Arachnid-Climber, Platypus-Bill,
    Mud-Camouflage, Vibration-Tracker, Crushing-Plates, Static-Croak,
    Mangrove-Lurker, Conductive-Skin, Paralytic-Spurs

Life Cycle

  • Egg Stage: The lifecycle begins inside a clusters of large, translucent gelatinous eggs anchored deep beneath submerged mangrove roots or inside flooded cavern walls, shielded from surface currents.
  • Tadpole Phase: Upon hatching, the young emerge as predatory tadpole-hybrids. They lack limbs but possess a long, eel-like tail that naturally generates minor static fields used to stun small aquatic insects.
  • Metamorphosis: Around the six-month mark, the juvenile undergoes a drastic structural transformation. The muscular frog-legs erupt from the rear, followed shortly by the sprouting of the eight bristling arachnid limbs along its flanks.
  • Maturity: By the end of its first year, the rubbery platypus bill fully hardens with internal crushing plates, and the venomous ankle spurs calcify on the hind legs, marking its transition into a mature apex lurker.
  • Lifespan: A typical specimen can survive for up to twelve years in the murky river networks of Saṃsāra, though older individuals eventually lose their electrical grounding, causing their own bio-electric organs to slowly short-circuit their nervous systems.

Mating

  • Seasonal Convergence: Mating occurs exclusively during the peak of the monsoon season, when heavy rainstorms flood the river basins and massively increase the electrical conductivity of the surrounding mudflats.
  • The Static Call: Males occupy deep mud-hollows and emit low, rhythmic, vibrating croaks that double as underwater bio-electric pulses, sending ripples of static through the water to announce their location.
  • The Ritual Probe: When a female approaches, she uses her highly sensitive electro-receptive bill to scan the male’s current output. She judges his fitness based on the strength, voltage, and stability of his bio-electric signature.
  • High-Voltage Union: If impressed, the female locks onto the male using her eight arachnid limbs. The pairing involves a massive, synchronous electrical discharge from both individuals that briefly illuminates the dark swamp water with bright blue arcs.
  • Nesting: Following a successful union, the female drives the male away with a warning strike from her paralytic spurs. She then constructs a submerged nest of woven river reeds and mud, sealing her egg cluster inside before abandoning it to return to her solitary hunting grounds.

Tactics

  • Submerged Ambush: The creature relies on absolute stillness, burying its mottled green torso in river mud or anchoring itself to mangrove roots, leaving only its sensitive bill exposed just below the waterline.
  • Electro-Tracking: Bypassing visual reliance entirely, it uses its electro-reception to map the nervous systems of approaching targets, allowing it to accurately track prey through pitch-black water or dense mud columns.
  • Explosive Leap: Once a target steps into its striking perimeter, the creature detonates its muscular hind legs to launch a high-velocity amphibious leap, slamming its heavy frame directly into the prey.
  • Shock and Pin: Upon contact, it fires a massive bio-electric discharge along its dorsal spine to instantly stun the victim, while simultaneously wrapping its eight multi-jointed arachnid limbs around them to pin them beneath the surface.
  • Submersion Suffocation: If a target survives the initial shock, the creature uses its heavy weight and leg strength to drag them down into the deepest, muddiest section of the riverbed, using its crushing bill plates to break bones while waiting for the prey to drown.

Actions

  • Crushing Bill Strike: Melee Action. The creature snaps its rubbery platypus bill down on a target, inflicting 1d8 bludgeoning damage and initiating a grapple using its internal crushing plates.
  • Multi-Leg Pin: Melee Action. The creature uses its eight arachnid limbs to grapple a creature. While pinned, the target takes a cumulative penalty to physical escape rolls due to the thick, irritating hairs coating the limbs.
  • Amphibious Spring: Movement Action. The creature leaps up to 30 feet horizontally or 15 feet vertically. If it lands adjacent to a target, it can immediately make a Crushing Bill Strike or a Venomous Spur strike as a bonus action.
  • Bio-Electric Discharge (Recharge 5–6): Area Action. The creature releases a massive arc-lightning surge from its eel-like dorsal spine. All creatures within a 15-foot radius submerged in the same water column take 3d6 lightning damage and must pass a physical save or be stunned for 1 round.
  • Venomous Spur Strike: Bonus Action. The creature slashes a grappled or prone target with the calcified spurs on its hind legs, inflicting 1d4 piercing damage. The target must succeed on a Constitution save or suffer temporary localized muscle paralysis.
  • Static Croak: Bonus Action. The creature emits a low, vibrating vocalization that charges the immediate water, giving it a temporary bonus to its next electrical damage output.

Other Interesting Information

  • The urticating hairs on its eight arachnid limbs are incredibly brittle; when brushed against surface skin, they break off to cause intense, burning rashes that severely distract humanoid spellcasters and fighters.
  • Alchemists and magic-tech engineers highly value the electroplax organs running down the creature’s spine, harvesting them to serve as long-lasting organic batteries for localized lighting grids or laboratory power cores.
  • Because its bill relies on pure electro-reception, the creature is violently disoriented by artificial electrical barriers or lightning magic, which can cause its sensory arrays to completely overload and force it into a panicked retreat.
  • When an Isekai soul takes over this specific gestalt chassis, they are often overwhelmed by the sheer amount of sensory input pouring in from the bill, describing the experience as “tasting the electricity of every living thing in the room.”
  • Despite its terrifying appearance and volatile high-voltage capabilities, the creature is a deeply lazy hunter, completely unwilling to pursue prey that manages to break its initial grapple and escape to dry land.
  • The paralytic venom secreted by its hollow ankle spurs remains active inside the calcified bone for weeks after the creature’s death, making the harvesting of its hind legs an incredibly hazardous task for careless survivalists.

An adventuring party exploring the waterways, mangrove swamps, or flooded cavern systems of Saṃsāra might search for or unexpectedly encounter a Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 for several distinct mechanical and economic reasons:

Harvesting High-Value Organic Energy Cells

  • Organic Power Cores: Magic-tech engineers, scholars, and alchemists place immense value on the specialized electroplax organs running down the creature’s eel-like spine. Adventurers are often contracted to harvest these organs intact, as they can be repurposed as stable, long-lasting biological batteries to power localized laboratory grids or arcane defense systems.
  • Alchemical Paralytic Toxin: The hollow, calcified spurs resting on the creature’s hind legs retain their debilitating venom long after its death. Assassins, rogues, and hunters hire extraction teams to secure these spurs for processing into high-grade muscle-seizing weapon coatings.

Guarding Essential Submerged Trade Paths

  • Clearing Shipping Canals: Because these creatures are lazy, stationary ambush predators that establish long-term territories in slow-moving rivers and mangroves, they present a massive hazard to commercial river traffic. A single specimen hidden just beneath the waterline can ground small merchant vessels or drag unwary waders to the riverbed, prompting local merchant guilds to issue high-paying extermination bounties.
  • Cavern Navigation Hazards: Parties seeking ancient flooded ruins or underground passages will naturally cross paths with this beast. Bypassing visual darkness entirely via its electro-receptive bill, it serves as a terrifying, unseen gatekeeper capable of executing a high-velocity spring at a party’s vanguard before they can roll for initiative.

Capturing Rare Beast Specimens

  • Coliseum and Menagerie Bounties: The grotesque and visually alien blending of a rubbery bill, eight bristling arachnid legs, and an arc-lightning emitting tail makes the creature a premier prize for underground fighting arenas or eccentric noble collections. Adventurers skilled in non-lethal capture methods can fetch a small fortune by successfully tranquilizing and transporting a live specimen out of the deep marsh.

Beyond the primary bio-electric electroplax organs and venomous ankle spurs, a successfully harvested Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 carcass provides several specialized biological components highly prized by alchemists, survivalists, and weaponsmiths:

  • Urticating Arachnid Bristles: The thick, brittle hairs coating the creature’s eight multi-jointed limbs can be carefully scraped off and stored in airtight leather pouches. Saboteurs and rogues utilize this powder as a potent irritant, throwing it into the air to induce severe, burning skin rashes and respiratory distress that completely disrupt the focus of enemy spellcasters and martial fighters.
  • Mottled Amphibian Hide: The slick, rubbery green skin of its torso possesses natural mud-repellent and waterproof qualities. Leatherworkers can cure this hide into specialized amphibious cloaks or diving suits that grant the wearer enhanced swimming grace and a minor bonus to stealth checks while wading through murky water columns.
  • Electro-Receptive Platypus Bill: The wide, sensitive bill is packed with a dense network of intact, microscopic nerve endings. Master tinkers and arcano-mechanics preserve the bill in stabilizing alchemical oils, integrating it into custom dowsing rods or specialized tracking visors designed to detect hidden magical anomalies and nearby bio-electric nervous systems in pitch-black conditions.
  • Internal Bone Crushing Plates: Located deep inside the creature’s maw, these dense, ribbed keratinous plates are built to pulverize heavy river crab shells. Weaponsmiths salvage these durable plates to reinforce the striking faces of heavy war hammers, maces, or gauntlet knuckles to increase structural crushing damage.
  • High-Tension Leaping Tendons: The massive, muscular hind legs contain incredibly elastic, thick sinew. Crossbow makers and siege engineers prize this material for winding the torsion springs of heavy underwater ballistae or military-grade arbalests, giving the weapons immense projectile velocity.
  • Conductive Dorsal Membranes: The underlying tissue supporting the electric spine acts as a perfect biological ground. When stripped and dried, these flexible membranes can be woven into the linings of armor or gloves to shield the user from external lightning magic, grounding out shock hazards safely away from the wearer’s vital organs.

Shocking Leg-Springer and Giant Shaving-Knife-Beak

Let it be known to the keepers of the fish-nets and the rulers of the slow waters that this is the clumsy copying of the very ancient leaf-writing, found inside a clay pot buried deep beneath the roots of the wet mangrove trees within the seventy and three island nations. It was written in the days before the great language-mixing by scribes whose brains were full of swamp-fever, who did not have the correct words for the high-voltage arcings or the hairy spider-limbs.

In the old, cold time when the world Saṃsāra was yet soft like a fresh riverbank and the sky-lights did not know their proper paths, the great mother-spirit of the muck did sit upon her throne of rotting reeds. She looked into the starry holes where the traveling souls from the strange glass worlds do drop down like dying sparks into the wild wilderness. She saw a giant frog-beast of the great rivers that could jump over houses with its muscle-legs, and she saw a giant bird-eating spider-bug covered in itching bristles, and she saw an elongated fish-eel that carries the blue lightning-spark inside its skin-meat, and she saw a strange water-mole with a flat duck-nose and poison spears upon its ankles. She did say into her inner belly-thought, “I shall glue these four wild things into a single wet terror to try the courage of the newcomers.”

The ancient scribe writes that she did take the explosive jumping-thighs of the giant green frog and did paste them onto a slick, mottled torso. Out from the sides of the ribs, she did grow eight multi-jointed spider-legs covered in thick, irritating hairs that could climb up the slippery tree-roots. Down the spine-ridge to the end of the tail, she did stitch the smooth skin of the electric fish-eel, full of blue lightning-juice that ripples when the beast is angry. And upon the front of the skull, where a proper mouth should sit, she did slam a wide, rubbery platypus-bill, full of tiny sensory pits and hard crushing plates inside the throat, while hiding two calcified poison-spurs upon the ankles of its jumping-feet. She named this creature Conraua-Theraphosa-Electrophorus-Ornithorhynchus Five-Twelve, which translates in the broken tongue of the swamp-dwellers to: “The Lightning-Tailed Mud-Lurker with the Many Hair-Legs.”

There was an adventurer of the old epoch, a traveler from the star-towers whose soul had been thrown across the cosmic boundary after his first body was crushed by a metal chariot in a city of stone. When his spirit woke up in the muddy shallows of Saṃsāra, his mind-box was full of the grey fog. He did look upon his fresh skin and saw he was merely a low-level river-scout, possessing only a wooden fishing-spear, a pair of wet linen trousers, and zero gold coins in his wet leather purse. His Athletics skill was not yet trained, and his character sheet had no resistance to the shock-magic.

The river-scout did wade through the murky, slow-moving basins where the mangrove trees do grow thick like fences. He did see the water bubbling with a strange blue light, and he did hear a low, vibrating croak that did make his teeth shake inside his jaw. He did say to his own thinking, “There is surely a great magical pearl or an ancient treasure-pot glowing beneath this river-mud. I shall dive down with my wooden spear and lift it out to sell to the town-master for seven pieces of silver.”

But this was the great traps of the multi-legged frog-eel! The lazy beast had been sitting in the deep mud-bed for three days without moving, tracking the bio-electric signature of the scout’s nervous system through the tiny pores of its flat platypus-bill. When the scout did step his bare feet within the striking perimeter, the creature did detonate its massive hind legs.

The crumbling leaf-scroll states that the monster did execute an explosive amphibious spring, launching its 160-pound frame out from the black water like a stone from a catapult. Before the scout could look upon his action-menu or call for his companions, the beast did slam its heavy torso directly into his chest. It did instantly wrap its eight bristling arachnid limbs around his arms and shoulders, pinning him tight while the brittle hairs did break off into his skin, causing a terrible burning rash that did ruin his focus.

The scout did scream a great wet scream, but the creature did snap its broad platypus-bill down upon his shoulder-bone, locking its internal crushing plates onto his flesh with the force of a blacksmith’s vice. Then, the ancient writing says, the beast did fire its great dorsal spine. A massive arc-lightning discharge did ripple out through the water column, turning the river into a bright blue flash of death. The lightning-juice did rush through the scout’s limbs, causing his muscles to twist with the great cramp and emptying his hit-point pool until it was nearly dry.

The hero did know by his remaining wisdom that if he stayed pinned beneath the water by the eight spider-legs, his breath-box would fill with mud and he would drown into the dark ground. With a desperate Strength roll, he did smash the butt of his wooden spear against the creature’s rubbery snout, hoping to blind its electro-receptors. The strike was true, and the monster did click its bill in great territorial annoyance, releasing its crushing grip for a short second.

But as the scout did try to scramble up the slippery clay bank, the beast did strike backward with its hind legs, driving its calcified ankle-spurs deep into the scout’s calf-muscle. The paralytic venom did instantly enter his veins, turning his leg into cold, heavy stone so that he could no longer run or leap. He did fall into the reeds, his spear floating away down the current, while the beast did release another static croak that did make the air smell like burnt hair.

The scout would have been dragged down into the deep mud-bed to have his bones pulverized by the internal crushing plates, but the great noise of the electrical blast did alert a party of high-level dragon-knights who were riding their scaly beasts along the high trade road. They did unleash a great volley of fiery arrows from the ridge, lighting up the mangrove swamp. Because the creature is deeply lazy and hates to chase any prey that escapes its first strike, it did loosen its spider-arms and did execute a backward swim-glide, vanishing into the deep, murky water-channels where the arrows could not pierce. The knights did pull the half-dead scout from the reeds, his skin covered in burning spider-rashes and his leg frozen by the ankle-poison, and he did spend three moons in the healer’s hut drinking bitter leaf-tea before he could walk upon his feet again.

Moral of the Story

He who walks into the muddy mangroves must never go fishing for a light that croaks like a frog and swims like an eel, lest he be hugged by eight hairy spider-arms and bitten by a duck. Keep your feet out of the deep river-mud when the water turns blue, and remember that the laziest hunter in the swamp always carries the highest voltage in its tail.

Suggested conversions to other systems:

Call of Cthulhu (7th Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 (The High-Voltage Swamp Lurker)

  • Characteristics:
    • STR 80 (Muscular Crushing Jaw and Leaps)
    • CON 95 (Thick Rubbery Hide)
    • SIZ 90 (6-Foot Elongated Frame)
    • DEX 65 (Agile Swimmer / Heavy Land Croucher)
    • INT 10 (Feral Instinctual Baseline)
    • POW 55 (Basic Life Spark)
    • EDU —
    • HP: 18
    • Damage Bonus (DB): +1D6
    • Build: 2
    • Move: 4 Ground / 9 Swim
    • Magic Points: 11
  • Combat Profile:
    • Attacks per round: 1 (May strike with its crushing bill, use its pinning limbs, or execute a venomous spur slash)
    • Fighting (Crushing Bill Strike) 60% (30% Hard / 12% Extreme), damage 1D8 + DB (Initiates a grapple on a success)
    • Venomous Spur Strike 50% (25% Hard / 10% Extreme), damage 1D4 + half DB + Poison (Target must pass a CON roll or suffer a local temporary -20% penalty to all physical characteristic rolls from muscle paralysis)
    • Dodge 32% (16% Hard / 6% Extreme)
  • Skills:
    • Athletics (Swimming) 85%, Stealth 65% (Increases to 80% when submerged in murky river mud), Track (via Electro-Reception) 75%
  • Special Abilities and Mechanics:
    • Electro-Reception: Bypasses all visual penalties and cover modifiers while submerged in water or mud. Can accurately detect and track the nervous systems of any living investigator within 10 yards.
    • Bio-Electric Discharge (Recharge 5–6): As its combat action, if submerged in a shared water column, the creature can unleash an arc-lightning surge from its spine. All investigators within 5 yards take 2D6 lightning damage (DEX roll for half damage) and must pass a CON roll or be stunned and incapacitated for 1 round.
    • Urticating Bristles: Anyone attempting to grapple or wrestle the creature with bare skin automatically triggers an intense, burning rash, suffering a penalty die to all physical actions for the next 1d4 rounds.
    • Sanity Loss: 0/1D4 Sanity points to witness its unsettling blend of a rubbery platypus bill, a slick amphibian torso, eight hairy arachnid limbs, and an electric tail.

Blades in the Dark

The Lightning-Tailed Mud-Lurker (Vile Chimera)

  • Classification: Level 3 Threat (Submerged Swamplike Horror)
  • Anatomy & Quality:
    • Tier III Quality Scale (Massive, mottled green amphibian torso mounted on eight bristling spider limbs, an elongated bio-electric eel tail, and a sensitive platypus bill)
    • Scale: Medium-scale solitary ambush predator (Measures 6 feet in length, roughly 160 lbs)
  • Attributed Traits & Actions:
    • Prowess (Threat level Great): Explosive leaps out of the water column, rapid swimming, and restrictive multi-limbed pinning capabilities.
    • Insight (Threat level Poor): Relies completely on electro-receptive mapping of neural pathways; blind to surface illusions but easily disoriented by massive artificial electrical barriers.
    • Resolve (Threat level Firm): Stoic and low-energy until a hunting perimeter is breached, escalating immediately into a high-voltage assault loop.
  • Mechanical Consequences & Harm:
    • Level 3 Harm: Convulsing Nervous System / Crushed Shoulder (From a high-voltage spinal discharge or clamping internal bill plates)
    • Level 2 Harm: Burning Skin Rash / Paralyzed Calf (Induced by breaking urticating spider bristles or a calcified hind ankle spur puncture)
  • Clock Mechanics & Tactical Triggers:
    • 4-Clock: Submersion Suffocation. If the creature successfully pins an operator in a waterway, it ticks this clock during every subsequent action phase. When filled, the operator is dragged into the deep mudbed and begins to drown.
    • Electric Hairs: Close-quarters melee engagements suffer reduced effect levels unless specialized grounding armor or long-reaching spears are utilized.

Dungeons & Dragons (5th Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512

  • Basic Statistics:
    • Large Beast, Unaligned
    • Armor Class: 14 (Natural Armor)
    • Hit Points: 76 (9d10 + 27)
    • Speed: 20 ft., climb 20 ft., swim 40 ft.
    • STR 16 (+3), DEX 14 (+2), CON 17 (+3), INT 2 (-4), WIS 16 (+3), CHA 3 (-4)
    • Skills: Athletics +5, Stealth +4 (+6 in murky water)
    • Senses: Blindsight 30 ft. (Underwater only, via Electro-Reception), Passive Perception 13
    • Challenge Rating: 3 (700 XP equivalent)
  • Traits:
    • Amphibious Leaper: The creature can breathe both air and water. Its long jump is up to 30 feet and its high jump is up to 15 feet, with or without a running start.
    • Urticating Bristles: A creature that touches the lurker or hits it with an unarmed melee attack must succeed on a DC 13 Constitution saving throw or become poisoned until the start of its next turn. While poisoned in this way, the target has a burning skin rash and cannot cast spells requiring concentration.
    • Lightning Grounding: The lurker is immune to lightning damage.
  • Actions Menu:
    • Multiattack: The lurker makes two attacks: one with its Crushing Bill Strike and one with its Venomous Spur Strike.
    • Crushing Bill Strike: Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage. If the target is a Medium or smaller creature, it is grappled (escape DC 13) by the internal crushing plates. Until this grapple ends, the lurker can’t bite another target.
    • Venomous Spur Strike: Melee Weapon Attack: +5 to hit, reach 5 ft., one target grappled or prone by the lurker. Hit: 5 (1d4 + 3) piercing damage, and the target must make a DC 13 Constitution saving throw, taking 7 (2d6) poison damage on a failed save and becoming poisoned for 1 minute due to temporary muscle paralysis. On a successful save, the target takes half as much poison damage and isn’t poisoned.
    • Bio-Electric Discharge (Recharge 5–6): The lurker releases a massive surge of arc-lightning along its dorsal spine. Each creature within a 15-foot radius that is submerged in the same water column or standing on a wet surface must make a DC 13 Dexterity saving throw. A target takes 14 (4d6) lightning damage on a failed save and is stunned until the end of its next turn. On a successful save, a target takes half as much damage and isn’t stunned.

Knave (2nd Edition)

Mud-Lurker Spiker

  • Attributes:
    • Armor Check: 14 (Slick rubbery hide and multi-limbed frame protection)
    • Hit Dice: 4 (20 Hit Points Baseline)
    • Movement Speed: 20 ft. Ground / 40 ft. Swim / 30 ft. Leap
    • Morale Score: 9 (Solitary, driven by low-energy ambush loops)
    • Attack Profiling: One primary crushing strike or venomous spur slash per turn cycle (+3 bonus to attack rolls).
  • Damage Outputs:
    • Crushing Platypus Bill: 1s8 bludgeoning damage (Automatically clamps onto the target, initiating a grapple).
    • Venomous Ankle Spur: 1d4 piercing damage (Target must pass a Constitution save or have their leg frozen by paralysis, reducing their ground speed to 0 for 1d4 rounds).
  • Tactical Core Rules Syntax:
    • Electro-Sense Advantage: Bypasses all ambient vision penalties or concealment modifiers while submerged. Automatically detects the bio-electric output of any living entity up to a room away.
    • Bristle Back Rash: Anyone attacking the creature with their bare hands or close grappling maneuvers must pass a Constitution save (DC 12) or gain a disadvantage penalty to all physical attribute checks for the next round due to extreme, burning rashes.
    • High-Voltage Spinal Flash (Recharge 5-6): Floods a 15-foot aquatic perimeter or wet room with lightning. All targets must pass a Dexterity save (DC 12) to leap to a dry elevation or take 2d6 electrical damage and become stunned for 1 round.
    • Loot & Harvesting Assets: Yields 1 set of conductive dorsal membranes (usable to forge gloves that ground out light shock traps) and 2 calcified venomous spurs.

Fate Core / Fate Condensed

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 (The Lightning Mud-Lurker)

  • Aspects:
    • High Concept: Amphibious Electro-Receptive Ambush Predator
    • Trouble: Blind to Surface Illusions but Overloaded by Artificial Currents
    • Territory Aspect: Lurker of the Murky Mangrove Channels
    • Bio-Mechanical Aspect: Sensitive Electro-Receptive Platypus Bill
    • Combat Aspect: Eight Bristling Arachnid Limbs and a High-Voltage Tail
  • Skills:
    • Great (+4): Athletics, Physique
    • Good (+3): Stealth, Notice
    • Fair (+2): Fight, Will
    • Average (+1): Intimidation
  • Stunts:
    • Amphibious Spring: The creature may move up to two zones as a free action if it begins its turn submerged in a water column and ends its movement adjacent to a target, immediately allowing a Fight action.
    • Urticating Bristle Guard: Because its eight spider limbs are coated in irritating hairs, any character who fails a physical Fight action to wrestle or grapple the creature immediately suffers a mild physical consequence or text modifier representing a Burning Skin Rash.
    • High-Voltage Spinal Flash: Once per encounter, when submerged in a shared water column or wet environment, the creature can roll Physique against the Athletics of all targets in its zone. Success inflicts stress and attaches the situation aspect Stunned by Arcing Lightning to the targets.
  • Stress & Consequences:
    • Physical: [ ] [ ] [ ] [ ]
    • Mental: [ ] [ ] [ ]
    • Mild Consequence (2): ________
    • Moderate Consequence (4): ________

Numenera & Cypher System

High-Voltage Swamp Lurker

  • Level: 3 (Level 4 for swimming tasks; Level 5 for electro-receptive tracking)
  • Motive: Low-energy ambush foraging and defense of submerged river hollows.
  • Environment: Slow-moving river basins, murky mangrove swamps, and flooded cavern networks.
  • Health: 12
  • Damage Inflicted: 3 points of physical crushing damage (Platypus Bill) or 5 points of electrical damage (Spinal Discharge).
  • Armor: 1 (Slick rubbery hide provides basic physical cushioning).
  • Movement: Short on land; Long when swimming or executing an explosive leap out of water.
  • Modifications: Tasks involving sensory perception or tracking living nervous systems through mud or total darkness are decreased by two steps (Level 1 task).
  • Combat & Encounter Mechanics:
    • Multi-Leg Pin: The creature uses its eight arachnid limbs to grapple an explorer. Escaping the pin requires a Might task. While pinned, the explorer takes 1 point of ambient damage per turn from irritating urticating bristles.
    • Bio-Electric Discharge (GM Intrusion): The creature activates its eel-like dorsal spine, releasing a massive blue arc-lightning surge through the water column. All targets within immediate range take 5 points of ambient lightning damage and must succeed on a Might defense roll or become incapacitated by muscle spasms for 1 round.
  • Salvage & Loot Assets: Harvesting the remains yields a set of conductive dorsal membranes (salvageable as an asset to build shock-resistant gear) and 1d2 Level 3 Cyphers containing intact electroplax cell tissue that can act as a single-use high-capacity battery.

Pathfinder (2nd Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 — Creature 3

  • Traits: N, Large, Amphibious, Beast
  • Perception: +10; Blindsight (Electro-reception) 30 feet (underwater or in mud only)
  • Skills: Athletics +11 (+13 to Swim/Leap), Stealth +9 (+11 in murky water)
  • Attributes: STR +4, DEX +2, CON +3, INT -4, WIS +3, CHA -4
  • Defenses:
    • AC Check: 18 (Natural armor check limit guided by its rubbery hide)
    • Fortitude: +12, Reflex: +9, Will: +8
    • HP Pool: 48 points
    • Immunities: Lightning
    • Defensive Abilities: Urticating Bristles (Any creature that grabs, grapples, or makes an unarmed melee strike against the lurker with bare skin must succeed on a DC 18 Fortitude save or become Sickened 1 from an intense, burning rash).
  • Speed: 20 feet, climb 20 feet, swim 40 feet
  • Melee Attacks (Actions):
    • [one-action] Crushing Bill Strike +11 to hit. Hit: 1d10 + 4 bludgeoning damage. On a success, the target is Grabbed by the internal crushing plates.
    • [one-action] Venomous Spur Strike +11 to hit. Requirement: The target must be prone or grabbed by the stalker. Hit: 1d6 + 4 piercing damage, and the target must make a DC 19 Fortitude save or suffer localized muscle paralysis (Slowed 1 for 1d4 rounds; or Paralyzed for 1 round on a critical failure).
  • Special Ability Actions:
    • [one-action] Amphibious Spring: The lurker makes a Long Jump up to 30 feet or a High Jump up to 15 feet. This movement does not trigger reactions. If it lands adjacent to a target, it can immediately make a Crushing Bill Strike.
    • [two-actions] Bio-Electric Discharge (Recharge 5–6): The stalker unleashes an arc-lightning surge from its spine. All creatures within a 15-foot emanation submerged in the same water column must make a DC 20 Reflex save. The surge deals 3d6 lightning damage (basic Reflex save). On a failed save, the target is also Stunned 1.

Savage Worlds (Adventure Edition)

Lightning Mud-Lurker (Wild Card Beast)

  • Attributes:
    • Agility: d6
    • Smarts: d4 (A)
    • Spirit: d6
    • Strength: d8
    • Vigor: d8
  • Derived Statistics:
    • Pace: 4 (Swimming Pace 8; Leaping distance 5″ horizontally, 2″ vertically)
    • Parry: 5
    • Toughness: 7 (1 point of natural rubbery armor check value)
  • Skills:
    • Athletics d8, Fighting d6, Notice d6, Stealth d8
  • Edges & Special Abilities:
    • Aquatic: Swimming Pace 8. The creature cannot drown in water and ignores movement penalties for deep mud or water columns.
    • Electro-Reception: The creature ignores all visual penalties, cover modifiers, or darkness illumination penalties when tracking targets underwater out to 5″ (10 yards).
    • Crushing Bill Strike: Str+d6 damage. If the attack succeeds with a Raise, the creature automatically initiates a grapple via its internal crushing plates.
    • Venomous Ankle Spurs: Str+d4 damage. Used against grappled or prone foes. A target shaken or wounded by this attack must pass a Vigor roll at -2 or become Stunned due to localized muscle paralysis.
    • Urticating Bristles: Anyone attempting to grapple or physically pin the creature takes a -2 penalty to their rolls due to the brittle, skin-burning hairs coating its eight limbs.
    • Bio-Electric Discharge (Recharge 5-6): As a limited action, if submerged in a shared water column, the creature projects a Medium Blast Template centered on itself. All entities inside must make an Agility roll or take 2d6 electrical damage and become Distracted.

Shadowrun (6th World Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 (The Lightning Mud-Lurker)

  • Attributes:
    • Body: 5
    • Agility: 4
    • Reaction: 4
    • Strength: 5
    • Willpower: 3
    • Logic: 1
    • Intuition: 4
    • Charisma: 1
    • Essence: 6.0
    • Magic: —
    • Initiative: 8 + 1D6 (9 + 1D6 when in water)
    • Defense Rating: 9 (Slick rubbery hide augmented by multi-limbed evasion)
  • Condition Monitors:
    • Physical: 11
    • Stun: 10
  • Skills:
    • Athletics: 4 (Swimming +2, Leaping +2)
    • Close Combat: 4 (Crushing Bill Strike / Venomous Spur Strike)
    • Perception: 3 (Electro-reception +3)
    • Stealth: 4 (+2 in muddy water columns)
  • Critter Powers & Complex Mechanics:
    • Electro-Receptive Mapping: The creature ignores all visibility and environmental modifiers (such as murky water, smoke, or total darkness) when targeting living organisms within 10 meters, provided it is submerged or grounded in wet terrain.
    • Urticating Bristles: Any character attempting an unarmed strike or a grapple against the creature must immediately resist 2S damage from skin irritation and takes a -2 dice pool modifier to all actions for 2 rounds due to severe burning rashes.
    • Crushing Bill Strike: DV 3P, AR 8/—/—/—/—. A successful strike automatically inflicts the Grappled status. While grappled, the target takes 2P damage at the end of each Player Turn from internal crushing plates.
    • Venomous Spur Strike: DV 2P, AR 6/—/—/—/—. Can only target grappled or prone opponents. If damage is marked on the physical monitor, the target must pass a Body + Willpower (3) test or suffer the Paralyzed status for 1 combat round.
    • Bio-Electric Discharge (Recharge 5–6): As a Major Action, while in a shared water column or on wet terrain, the creature releases a surge of arc-lightning. It attacks everyone within a 5-meter radius using its Close Combat + Strength pool. This attack deals 6S (e) damage and inflicts the Stunned status on any targets who fail to dodge.

Starfinder (2nd Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 (Mud-Lurker Stormbeast)

  • Basic Statistics:
    • Large Beast, Unaligned
    • Armor Class (EAC/KAC): 15 / 17 (Slick rubbery hide)
    • Hit Points: 76 points
    • Speed: 20 ft., climb 20 ft., swim 40 ft.
    • STR +3, DEX +2, CON +3, INT -4, WIS +3, CHA -4
    • Skills: Athletics +11 (+13 to Swim/Leap), Stealth +9 (+11 in murky water)
    • Damage Immunities: Lightning
    • Senses: Blindsight 30 ft. (Underwater/mud only via Electro-reception), Passive Perception 13
  • Traits:
    • Amphibious: Can breathe both air and water seamlessly.
    • Amphibious Leaper: The creature ignores running start rules. Its long jump is up to 30 feet and its high jump is up to 15 feet.
  • Actions & Attacks:
    • Crushing Bill Strike (One Action): Melee Strike +11 to hit (Reach 5 ft.). Hit: 1d10 + 4 bludgeoning damage. On a success, a Medium or smaller target is Grabbed (escape DC 19) by the internal crushing plates.
    • Venomous Spur Strike (One Action): Melee Strike +11 to hit (Reach 5 ft.). Requirement: Target must be grabbed or prone. Hit: 1d6 + 4 piercing damage plus poison. The target must make a DC 19 Fortitude save or take 2d6 poison damage and become Slowed 1 for 1d4 rounds due to muscle paralysis (or Paralyzed for 1 round on a critical failure).
    • Amphibious Spring (One Action): The creature leaps its maximum distance. This movement does not provoke reactions. If it lands adjacent to an enemy, it can make a Crushing Bill Strike as a free action.
    • Bio-Electric Discharge (Two Actions; Recharge 5–6): The creature fires a massive arc-lightning surge from its spine. All creatures within a 15-foot emanation submerged in the same water column must make a DC 20 Reflex save, taking 3d6 lightning damage on a failed save and becoming Stunned 1. On a success, they take half damage and are not stunned.

Traveller (Core Rulebook / Mongoose 2nd Edition)

Amphibious Lightning Lurker

  • Animal Statistics:
    • Type: Hunter / Ambusher
    • Size: 75 kilograms (6-foot amphibious chassis)
    • Armor Check: 1 (Slick rubbery skin)
    • Characteristics: STR 8 (+0), DEX 7 (+0), END 9 (+1), INT 1 (-2), INS 9 (+1), EDU 0 (—)
    • Hits (Damage Pools): 20 / 12 (Total pooling structure)
    • Speed: 6 meters Ground / 12 meters Swim / 9 meters Leap
  • Skills:
    • Athletics (Swimming) 2, Athletics (Leaping) 2, Melee (Unarmed) 1, Stealth 2
  • Attacks & Defensive Traits:
    • Crushing Platypus Bill: Damage 1D6+2 bludgeoning damage. On a successful hit, the target is automatically pinned. Escape requires an opposed STR check.
    • Venomous Ankle Spur: Damage 1D4 piercing damage. Can only be deployed against a pinned target. The victim must pass an END check (Difficulty 10+) or suffer a total loss of movement due to localized muscle paralysis for 1D4 rounds.
    • Urticating Bristles: Any Traveler attempting to grapple or physically pin the creature with bare skin takes a -2 penalty to their rolls and suffers a painful rash that limits their physical actions for 2 rounds.
    • Electro-Reception: In total darkness or muddy conditions, the creature ignores all negative attack modifiers against targets submerged in the same body of water.
    • Bio-Electric Spine Discharge: Once per encounter, when startled or cornered, it can emit a localized lightning arc through the water. All Travelers within 6 meters must make a DEX check (Difficulty 9+) or take 3D6 stun damage from the shock wave.
    • Loot & Harvesting Assets: Yields 1 set of conductive dorsal membranes (valuable to electrical engineers) and 2 intact venomous ankle spurs.

Warhammer Fantasy Roleplay (4th Edition)

Conraua-Theraphosa-Electrophorus-Ornithorhynchus 512 (The Swamp-Muck Chimera)

  • Profile Characteristics:
    • M: 3 (Swim: 6) | WS: 40 | BS: — | S: 45 | T: 42 | I: 35 | Ag: 32 | Dex: — | Int: 05 | WP: 30 | Fel: —
    • Wounds: 16 points
    • SB: 4 | TB: 4
    • Armor Check Plating: 1 (Rubbery hide protecting the Body and Legs hit locations)
  • Traits & Attributes:
    • Amphibious: Can move through water without penalty and breathe beneath the surface indefinitely.
    • Electro-Sense: The creature ignores all visual penalties resulting from mud, silt, or total darkness while underwater, acting with full Weapon Skill out to 6 yards.
    • Itching Bristles: Any opponent engaged in close-quarters wrestling or brawling with the monster must pass a Challenging (+0) Endurance Test or gain a Distracted Condition from burning, urticating hairs.
    • Immunity (Lightning): Completely unaffected by electrical forces, shock spells, or localized storm currents.
  • Combat Talents & Actions:
    • Weapon (Crushing Bill Strike): +40 to hit, Damage +6. Features the Wrap quality. On a successful hit, the target is caught in the internal crushing plates and cannot move until they pass an opposed Strength Test.
    • Weapon (Venomous Ankle Spur): +40 to hit, Damage +4. Can only target an opponent currently affected by the Wrap quality or Prone. If wounds are caused, the victim must pass a Challenging (+0) Endurance Test or gain a Stunned Condition from localized paralysis.
    • Bio-Electric Spine Blast: Once per encounter (Recharge 5–6), the creature can unleash a localized blast through the water column. All targets within a 3-yard radius must pass a Challenging (+0) Agility Test or suffer a hit with a Damage rating of +8 that bypasses conventional non-insulated metal armor plating.