Spectral Mantis Engine 9274 of the Resonant Heights

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Lore: The Spectral Mantis-Engine 9274 is a masterwork of “Rule-Breaker” engineering, born from the desperate necessity of a master artisan trapped within a collapsing ley-node in the Fractured Depths. By force-merging the arboreal mobility of the 5319 Grapnel, the thermodynamic regulation of the 204 Stabilizer, and the predatory lethality of the Mantis Claws, the creator forged a “Gestalt Apparatus.” The item is a tribute to Sumaq’s pulse-regulation and Elowen’s sky-silence, bound together by the aggressive adaptability of the Aquilarachnid. Legends say the 9274 does not just vibrate; it purrs with a predatory intelligence, treating the wearer’s steam-pressure and ley-flow as a single, breathing organism. It was used famously during the Siege of the Vapor-Spurs to scale sheer obsidian walls while simultaneously stabilizing the crumbling fortifications of the defenders.

Description: This massive, biomechanical bracer-harness is a complex fusion of brass rib-plates, obsidian fins, and mithral talons. Interwoven miststone wires glow with a steady blue-green bioluminescence that pulses in perfect synchronization with the wielder’s heartbeat. The forearm is encased in translucent tympanic leather, which houses the retractable dragon-sinew spool and the housing for the jagged, razor-sharp Mantis blades. When active, the device exhales rhythmic plumes of cool Stone-Breath vapor through carved terrace vents along the arm. A complex network of copper conduits and resonance crystals links the blade-housing to the steam-capsule core, allowing the weapon to strike with pressurized force.

Stats

  • Type: Hybrid Apex Apparatus (Tool/Weapon)
  • Tier: 3
  • Weight: 15 lb (Medium-Heavy)
  • Line Length: 150 ft (Supports up to 1,200 lb)
  • Blade Damage: 1d8+2 Slashing + 1d4 Steam/Heat damage.
  • Attunement: Required (10-minute ritual involving rhythmic breathing and a hummed Abbevillian chant).
  • Base Modifiers: +2 Strength, +2 Dexterity, +1 Constitution, +1 Wisdom.

Tags: Apex-Hybrid, Steam-Stabilized, Predatory, Grapnel, Climbing, Combat-Augmented, Ley-Resonant, Industrial-Evolved, Tier 3, Mithral, Obsidian, Dragon-Sinew, Bioluminescent, Precision, Heavy-Utility, Kinetic-Harvester, Mana-Pressurized, Apex-Artisan, Void-Climb, Chasm-Reaver, Thermal-Grip, Harmonic-Blade, Ley-Siphon, Geomorphic-Sync, Titan-Sinew

Passive Magics

  • Resonant Equilibrium: The wearer is immune to mechanical failure of their own gear and gains a 25% resistance to all fire, steam, and magical-overload damage.
  • Predatory Kinematics: Climbing and jumping actions are treated as Expert-level skills; the user gains a +2 bonus to Stealth rolls as the device mutes its own internal gears and steam-vents.
  • Pulse-Sense: The Mind’s Eye reveals the health, pressure faults, and vibrational weaknesses of all objects and creatures within 60 ft; the user cannot be surprised by hidden foes.
  • Living Anchor-Memory: The sinew line automatically seeks the most secure ley-vein or structural point; the line is indestructible by non-magical means and ignores wind-drag.
  • Stone-Breath Vitality: While attuned, the wearer’s natural healing from long rests is doubled, and they gain immunity to the “Cold Torpor” effect found in high-altitude or polar regions.

Active Magics

  • Vapor-Leap Strike (4/day): Action—The user fires the grapnel and engages the steam-vent simultaneously, propelling themselves up to 60 ft toward a target and making a Mantis Blade attack with Advantage.
  • Equalizing Surge (2/day): Action—The device releases a 30-ft radial burst of Stone-Breath. All allies within range gain 10 temporary HP and are cleansed of any “Overwhelmed” or “Disoriented” debuffs.
  • Rend the Ley-Vail (2/day): Action—The Mantis Blades glow with silver fire. For the next minute, the blades ignore all non-magical armor and deal an additional 2d6 “Silver Fire” damage to constructs or possessed foes.
  • Barrier of the Breathing Mountain (1/day): Action—The user anchors the line and vents all Stone-Breath energy to create a 15-ft diameter dome of pressurized mist. The dome reduces all incoming damage by 50% and lasts for 5 rounds.
  • Recall Yank (At-will): Bonus Action—The user retracts the line instantly. If a creature of Medium size or smaller is hooked, they must succeed on a Strength contest or be pulled 20 ft toward the user.

Specific Slot

  • Tool (This single physical object occupies only one slot: the Forearm/Tool slot, despite its complexity and back-stabilizing conduits).

Item Hit Points and Disablement

The Spectral Mantis-Engine 9274 is a Tier 3 consolidated object with a reinforced structure, possessing 120 HP and a Hardness of 18. Because it is a hybrid of three distinct technologies, its magical failure is progressive rather than immediate.

  • Integrity Thresholds:
    • 120–91 HP: Full functionality.
    • 90–61 HP (Damaged): The steam vents begin to hiss irregularly. Equalizing Surge and Rend the Ley-Veil are disabled. Strength and Dexterity bonuses drop to +1.
    • 60–31 HP (Severely Damaged): The internal dragon-sinew spool partially jams. Vapor-Leap Strike and Skyline Traverse (inherited function) are disabled. Range is halved.
    • 30–1 HP (Near Failure): The resonance crystals crack. All active magics are disabled. The passive Pulse-Sense is lost. The item no longer provides stat bonuses.
    • 0 HP (Broken): The device becomes an inert weight on the arm. The Mantis Blades cannot extend, and the line will not retract.

If a foe targets the item specifically (e.g., a “Rule-Breaker” attempting to sunder the brass housing or a monster’s crushing bite), they must deal more than 18 damage in a single instance to reduce the item’s HP. In Safe Areas, the avatar’s tripled AC makes the item nearly impossible to hit, but in Deathly Areas, where every attack hits, the 9274 is highly vulnerable to focused sundering.


Repair Process

Repairing a Tier 3 hybrid item is a complex ritual that requires the “Rule-Breaker” philosophy—using one’s own body as a conduit to realign the item’s shattered harmonics.

  • Field Maintenance (Minor Damage): Restoring up to 30 HP requires 4 hours of work using a Tinkerer’s Kit and a vial of Arcane Flux Oil. The crafter must succeed on a DC 18 Engineering check. Failure results in a minor pressure backfire (1d4 fire damage).
  • Structural Reforging (Moderate Damage): Restoring up to 60 HP requires a Steamforge Anvil and 8 hours of labor. Materials must include Mithral filings and Chasm Mist Essence (approximate cost: 2 Platinum). A DC 22 Smithing and DC 20 Alchemy check are required to reseal the obsidian plates and lubricate the sinew spool.
  • Resonance Restoration (Severe/Broken): If the item reaches 0 HP, it must be taken to a Breathing Forge Guildhall or a Veiled Ascent Enclave. The repair takes 3 days and requires a DC 25 Enchanting check to re-harmonize the cracked resonance crystals. Rare materials such as Phoenix Ash and a fresh Stone-Breath Condenser (cost: 5 Platinum) are consumed. During the final hour, the user must perform the Chant of Shell’s Fogged Talon-Ascent flawlessly to reintegrate the memories of the three merged items.

In the world of Saṃsāra, the Spectral Mantis-Engine 9274 of the Resonant Heights is an exceptionally rare artifact. Because it is a Tier 3 item created from the fusion of three distinct high-utility devices, it is not found on common shop shelves. Instead, its acquisition is a matter of high-stakes trade, political sponsorship, or illicit shadow-deals.

1. The Breathing Forge High-Sanctum (Peakhold)

The primary manufacturer of the 204 Stabilizer series views the 9274 as a “deviant masterwork.” To them, it is a sacred industrial relic that should only be held by a Master Artificer.

  • The Experience: You do not “buy” this item here; you qualify for it. A character must present a Tier 3 “Rule Breaker” certification and undergo a resonance test where the item’s hum must match the buyer’s pulse perfectly.
  • Cost: 12 Rhodium (or approximately 1,200 Gold). The price is high to reflect the “guild-blessed” status and includes a lifetime warranty for crystal recalibration.
  • Selling: The Guild will pay 7 Rhodium for a verified unit, but they will confiscate “unlicensed” versions if the seller cannot prove their lineage.

2. The Mechanist’s Bazaar (Qosqo-Suma)

In the capital of Andean, independent dealers who specialize in “Fused Curiosities” occasionally obtain these engines from retired explorers or fallen adventurers.

  • The Experience: The item is displayed in a pressurized glass case, exhaling constant plumes of luminous mist to prove its “Stone-Breath” core is active. Haggling is expected and usually involves trading other Tier 2 or Tier 3 components to offset the gold cost.
  • Cost: 15 Platinum (approximately 1,500 Gold). Prices fluctuate based on the current stability of local ley lines.
  • Selling: Dealers here are savvy. They offer 600 Gold in liquid currency or 800 Gold in “Bazaar Credit” for trade-ins.

3. The Shadow-Veil Exchange (Nightmire Jetty)

For those who wish to avoid guild branding or legal scrutiny, the back-alleys of Nightmire Jetty provide a place for “no-questions-asked” transactions.

  • The Experience: The sale takes place in a “Silence-Sigil” zone to hide the device’s resonant hum from patrols. The 9274 sold here might have “etched-out” serial numbers or modified, aggressive steam-vents.
  • Cost: 18 Platinum to 2 Rhodium (roughly 1,800 to 2,000 Gold). The “black-market tax” is steep due to the item’s lethality and the risks involved in its transport.
  • Selling: Brokers pay 900 Gold but may try to “compel” a lower price if they detect the item is damaged or has a “hot” history.

4. The Sky-Port Auction (Anti-Suyu)

The Steam Consortium occasionally auctions off recovered “Lineage Items” to the highest bidder among airship captains and sky-miners.

  • The Experience: A grand event where the 9274 is demonstrated live—using the Falcon Yank to move heavy crates or the Vapor-Leap Strike to reach the rafters.
  • Cost: Bidding starts at 800 Gold but frequently reaches 1,600 Gold depending on the number of rival collectors present.
  • Selling: Sellers pay a 15% “Auction House Fee” but can often net the highest possible profit if two wealthy bidders get into a “resonance-feud.”

5. Frontier Ranger Depots (Verdant Veil Borderlands)

In the most remote outposts, these items are occasionally traded for “Life-Debt” vouchers or rare biological materials.

  • The Experience: A rugged exchange involving a “test-climb” on the nearest chasm wall. The depot commander values utility over coin.
  • Cost: 1,000 Gold + a rare monster trophy (such as a Sky-Dragon Sinew or a shard of a Primal Mantis Carapace).
  • Selling: They rarely have the gold to buy it outright but will trade an entire suite of Tier 1 and Tier 2 gear for it.

The Spectral Mantis-Engine 9274 is a masterwork of aggressive equilibrium. In roleplay, its use is defined by the constant, rhythmic “breathing” of the steam vents and the predatory twitch of the mithral claws. It bridges the gap between industrial machinery and biological instinct.


1. Vertical & High-Altitude Environments (Chasms, Sky-Ports, Mountain Spires)

  • Defensive Roleplay: When a gale threatens to throw the party off a sky-jetty, the 9274 acts as a life-anchor. The user anchors the sinew line into the stone, while the Steam-Stabilizer vents counteract the wind’s pressure. You might describe the bracer glowing a deep, rhythmic teal as it synchronizes with your pulse to keep your grip steady against the “Cold Torpor” of the peaks. If a fall occurs, Guardian Arrest snaps the line taut with a resonant thrum, leaving you dangling safely as the steam vents hiss a cooling mist over your strained arm.
  • Offensive Roleplay: The user becomes an apex aerial predator. You use Vapor-Leap Strike to launch yourself from one floating platform to another, the Mantis Blades extending in mid-air with a metallic snick. You describe the descent as a “controlled fall,” using the Recall Yank to pull a flying foe into the range of your pressurized blades. The impact is narrated not just as a cut, but as a concussive blast of steam that ruptures the target’s defenses.

2. Urban & Industrial Environments (Metropolises, Docks, Foundries)

  • Defensive Roleplay: In the cramped, dangerous alleys of a megacity, the 9274 serves as a mobile fortification. You might use Equalizing Surge to stabilize a rupturing steam pipe that a foe has sabotaged, turning a potential explosion into a harmless cloud of soothing vapor that heals your allies. Roleplay the “Pulse-Sense” as a heightened awareness of the city’s vibrations—you “feel” the footsteps of an assassin on a rooftop three buildings away through the copper conduits of the bracer.
  • Offensive Roleplay: The Mantis Blades are ideal for close-quarters “Rule-Breaker” combat. You might use Rend the Ley-Veil to slice through a reinforced iron door or a guard’s shield as if it were parchment, the silver fire of the blades leaving glowing, molten edges. During a chase, you use the Falcon Yank to hook a fleeing target’s leg or a getaway zeppelin’s tail-fin, dragging them back toward you with a hiss of high-pressure steam.

3. Subterranean & Cave Environments (Dark Labyrinths, Deep Ley-Nodes)

  • Defensive Roleplay: In unstable tunnels, the 9274 is a survival tool. You anchor the device to the ceiling to provide Tremor Suppression (via the inherited Stabilizer functions), preventing a cave-in while your party retreats. The bioluminescent tubing acts as a primary light source, pulsing softly to reveal hidden “Ley-Echoes” in the stone. You describe the sensation of “Stone-Breath” filling the air, making the stale, thin oxygen of the deep caves feel crisp and energizing for your companions.
  • Offensive Roleplay: Combat in the dark is about precision. You use the Veil Resonance Scan to see the “heat signatures” and “vibrational auras” of burrowing monsters through the cave walls. When a beast emerges, you utilize the Barrier of the Breathing Mountain to trap it in a zone of high-pressure mist, slowing its movements while you systematically dismantle its armor with pressurized Mantis strikes. The echo of the blades striking stone rings out like a ritual chant, intimidating lesser creatures into fleeing.

4. Wilderness & Aquatic Environments (Dense Jungles, Sunken Ruins)

  • Defensive Roleplay: In a humid jungle, the 9274 is the ultimate climbing tool. You roleplay the Living Anchor-Memory as the line “seeking” the strongest bough of a giant tree, bypassing deceptive, rotting vines. If attacked by a swarm of insects, the steam vents can be opened wide to create a Thermal Mirage Field, blurring your silhouette and causing the swarm to lose its target in the swirling vapor.
  • Offensive Roleplay: Underwater or in swamps, the 9274 creates “Sonic Pulses.” You describe firing the grapnel into a sunken ruin’s wall to sling-shot yourself through the water with Quickfire Ascent. When the Mantis Blades strike, they create a cavitation bubble of superheated steam, dealing extra heat damage even in the coldest depths. The roleplay focuses on the “Predatory Kinematics”—moving with a grace that defies the weight of the heavy brass apparatus.

Perception of Activation: Spectral Mantis-Engine 9274

User’s Perspective (The Wearer) The moment the 10-minute attunement ritual concludes, the 9274 ceases to be a weight on the arm and becomes a living extension of the nervous system. As the steam-capsule core engages, the wearer feels a rhythmic, deep-seated thrum against their radius and ulna, perfectly pacing the beats of their own heart. The skin beneath the tympanic leather feels a localized humidity—a soothing, cool dampness from the secretion dripper that sharpens the mind and steady’s the hand.

When the Mantis Blades extend, there is no mechanical jolt, only a fluid sense of “lengthening” accompanied by the sharp, ozone-tinged scent of superheated obsidian. As the user fires the grapnel, the inner ear experiences a strange, gravity-defying clarity; the “Anchor-Sense” manifests as a golden tug in the gut, pointing with absolute certainty toward the most secure structural point in the environment.

Observer’s Perspective To those standing nearby, the activation of the 9274 is both awe-inspiring and intimidating. They hear a sequence of sounds: the metallic ting of resonance crystals, a low, predatory hiss of venting steam, and the heavy clack-lock of mithral talons. The bioluminescent tubing along the brass shells flares from a dim teal to a vibrant, pulsing cyan, casting rhythmic shadows on the floor.

The observer sees the “Stone-Breath” vapor exhalations as elegant, terrace-shaped plumes that momentarily distort the air around the wearer like a heat mirage. If the user is a “Rule-Breaker” utilizing the device as a conduit, the observer might see faint, silver-fire electricity dancing between the Mantis Blades and the wearer’s fingertips, signaling that the character’s very soul is fueling the machine.

Extra-Sensory Perceptions (ESP)

  • Ley-Empathy: The wearer perceives ley lines not as light, but as a “vibrational song.” Thick, healthy ley lines sound like deep cello notes, while fractured or unstable nodes emit a jagged, discordant screech that the 9274’s stabilizer immediately attempts to harmonize.
  • Kinetic Anticipation: A split-second before a physical impact or a fall, the device transmits a “pre-echo” to the user’s brain. The user “sees” the trajectory of their own swing or the point of their landing as a ghost-image before it physically occurs.
  • Thermodynamic Vision: Through the Mind’s Eye, the user sees the world in gradients of pressure and heat. Foes are revealed as glowing heat-signatures, and mechanical weaknesses in structures appear as “cold fractures” or dark spots in the environmental aura.
  • Telepathic Resonance: The 9274 creates a localized “empathy bubble.” The wearer doesn’t hear words but “feels” the emotional pressure of those within 30 feet—sensing the spike of fear in an enemy or the steadying resolve of an ally.

Positives

  • Total Equilibrium: The device provides an unparalleled sense of physical and magical stability, making the user nearly immune to environmental disorientation or “mana-dizziness.”
  • Predatory Confidence: The synchronization of the machine to the heartbeat removes hesitation, allowing for near-perfect execution of complex climbing and combat maneuvers.
  • Sensory Superiority: The ESP layers allow the user to navigate pitch-black or magically obscured environments with the same ease as a sunlit field.

Negatives

  • Bio-Magnetic Fatigue: Because the device “breathes” with the user, extended use (over 2 hours) can lead to a heavy, sluggish feeling in the chest and a lingering metallic taste in the mouth once deactivated.
  • Auditory Vulnerability: The intense resonance of the crystals makes the user sensitive to loud, discordant noises (like a thunderclap or a scream-spell), which can cause a momentary “Stun” or a -1 penalty to focus.
  • Technological Dependence: The profound “oneness” felt during activation makes the world feel dull, heavy, and dangerously silent when the item is removed, potentially leading to short-term emotional withdrawal.

The Rite of the Apex-Gestalt: Forging the Spectral Mantis-Engine 9274


Items Merged


Additional Materials Needed

  • Refined Rhodium Filigree (5 units): Used to bind the high-tier magical circuits between the steam core and the resonance crystals.
  • Greater Stone-Breath Fuel Cell (1 unit): Required to jump-start the Tier 3 equilibrium field.
  • Mantis Carapace Resin (2 vials): Alchemically treated to bond the brass housing to the tympanic leather without restricting movement.
  • Phoenix-Stabilized Quicksilver (1 dram): Acts as a high-speed lubricant and magical conductor for the 150-ft sinew line.
  • Obsidion Terrace-Plates (2 extra): To expand the thermal venting capacity for the combined heat of the blades and stabilizer.

Tools Required

  • Geomantic Steam-Forge: A high-pressure anvil capable of merging mithral and brass under magical tension.
  • Arcane Inscriber (Tier 3): For etching the complex “Gestalt-Lattice” runes that unify three different technological lineages.
  • Resonance Hammer: Specifically tuned to the 72-bpm “heartbeat” of the Breathing Forge.
  • Tinkerer’s Precision Array: For the micro-assembly of the retractable blade housing and the grapnel reel.
  • Mist-Weave Loom: To reintegrate the tympanic leather around the new, heavier mechanical frame.

Skill Requirements

  • Expert Steamcrafting: Necessary to manage the thermodynamic pressure of a Tier 3 capsule.
  • Master Tinkering: Required to align the retractable Mantis blades with the grapnel firing mechanism without jamming.
  • Expert Runesmithing: To overwrite the Tier 1 sigils and bind them into a single, cohesive Tier 3 matrix.
  • Geomancy (Journeyman+): To ensure the device properly siphons and stabilizes ambient ley energy.
  • Abbevillian/Andean Cultural Knowledge: To perform the combined “Mira-Sumaq” vigil chant required during the bonding phase.

Crafting Steps

  1. The Dismantling of Lineages: Carefully disassemble the three Tier 1 items. Each component must be rinsed in Arcane Flux Oil to “clear” the previous attunement echoes.
  2. The Heart-Core Fusion: Place the Steam-Capsule Core of the 204 Stabilizer into the center of the Steam-Forge. Use the Quicksilver to solder the Grapnel’s conductor crystals directly to the core’s manifold, creating a single energy circuit.
  3. Forging the Apex-Frame: Hammer the Brass Alloy Sheets and Mithral Talons together. The obsidian plates must be layered between the metal to act as heat-sinks for the Mantis Blade housing.
  4. The Sinew-Blade Integration: Wind the 150-ft dragon-sinew onto the reinforced mithral spool. Align the Mantis Blades so they sit parallel to the grapnel’s firing path, ensuring they extend automatically when the steam-pressure reaches the “Combat Threshold.”
  5. Inscribing the Gestalt-Lattice: Using the Arcane Inscriber, etch a unified runic spiral that flows from the palm-grip (Grapnel) to the forearm (Claws) and up to the venting manifold (Stabilizer).
  6. The Breath-Sync Ritual: Anchor the unfinished device to a ley-node. As you perform the final welds, you must hum the Chant of Shell’s Fogged Talon-Ascent in rhythm with the machine’s hiss.
  7. Final Calibration: Insert the Greater Stone-Breath Fuel Cell. If the bioluminescent tubing pulses cyan and the Mantis blades extend without a discordant rattle, the merge is successful. The resulting item emerges as the Spectral Mantis-Engine 9274.

Three-Fold Sigh and Iron-Breathed Talon

Hearken, O gatherers of the salt-echo, to the vellum of the un-tongued ages, scraped from the belly of a mountain that forgot its own name. This is the drift of the Spectral Mantis-Engine 9274, though the scrolls of the First-Mist call it The One Who Climbs the Heartbeat with Sharp-Teeth.

In the time when the moon was yet a soft-shelled egg and the ground-veins were not yet hard-bound by the Law of Tiers, there existed a Void-Chanter named Sumaq-Elowen-Ahsu. (The glyphs here are blurred; it is unsure if this was one being of three heads or three spirits poured into a single leather-sack). This Seer stood upon the Brink of the Boiling Air, where the stone exhales the ghost of the fire and the wind is a jagged blade of ice-scent.

The Seer possessed three sacred things, but the things were lonely. First was a Grapnel of the Ear, which heard the silence of the anchors. Second was a Lung of Brass, which breathed when the mountain choked. Third were Claws of the Green-Watcher, which chewed the flesh of the shadow-beasts.

But a Great Tremor of the Multiverse—the Shaking of the Many-Lives—fell upon the world. The Seer was cast into a pit where the ley-flow had turned to poison-blood. The Brass Lung hissed in fear; the Ear-Grapnel went deaf in the thunder; the Claws struck only at the air. The Seer, sensing the “Deathly Area” where the AC is as the dust of a moth’s wing, realized that three small breaths could not withstand one giant silence.

With a hammer made of “Wait-and-Patience,” the Seer committed the Great Rule-Breaking. They did not un-make; they forced the spirits to embrace.

“O Sinew,” the Seer hummed in a tongue that makes the teeth ache, “become the bone of the Lung. O Blade, become the tooth of the Ear. O Stabilizer, become the blood of the Talon.”

The Seer took the Secretion of the Anuran (here the text mentions The Fluid of the Sacred Moist-Hide) and boiled it in a pot of Stone-Breath. They poured the liquid over the three items until the brass turned to skin and the mithral turned to instinct. The 9274th strike of the hammer did not make a sound of metal; it made a sound of a First-Shaping Gasp.

The item awoke. It bit the Seer’s arm with a “Holding-Love.” It did not just sit upon the skin; it ate the pulse of the wearer to feed its internal gears. The bioluminescent veins began to glow with the color of a “Drowned Prism.”

When the shadow-monsters of the pit lunged—beasts of many-orbs and chitinous hate—the Seer did not flee. The Engine 9274 breathed a cloud of “Equilibrium-Mist” that made the poison-air turn to sweet geothermal dew. The Grapnel-Sinew did not look for rock; it looked for the “Ghost-veins” of the multiverse and pulled the Seer upward through the very ceiling of the world. As they rose, the Mantis-Teeth of the device chewed through the armor of the stars.

The Seer emerged from the pit no longer a seeker of three things, but a master of the Resonant One. Yet, the translation grows dark here; it says the Seer could never again hear the song of the birds, for their ear was now tuned only to the “Hiss-and-Thrum” of the machine. The brass had grafted to the bone, and the Stone-Breath was the only air the Seer’s lungs would accept.

They became the Ranger of the High-Pressure, a ghost who haunts the sky-ports, whose arm is a forest of obsidian and whose breath is the silver-fire of the mountain’s core.

The Moral of the Story: He who seeks to bind the sky, the stone, and the blade into a single fist must be prepared to let the machine’s pulse become his own; for when you merge the tools of survival into a master of all, you shall never again know the peace of a quiet heart or a simple breath.

Suggested conversions to other systems:


Call of Cthulhu (7th Edition)

Name: The Resonant Talon of the Deep Veins Item Type: Unique Arcano-Mechanical Prosthetic / Artifact

Description: A heavy brass-and-obsidian bracer that hums with a rhythmic, bone-deep thrum. It requires a successful Hard Power Index or Science (Engineering) check to calibrate to the wearer’s pulse.

Game Mechanics:

  • Sanity Cost: 1d4/1d8 Sanity points to initially attune (the experience of the item “feeding” on the user’s pulse is deeply unnerving).
  • Combat: The Mantis Blades deal 1d8 + 2 + Damage Bonus slashing damage.
  • Armor: Provides 2 points of armor to the wearer’s arm only.
  • Skills: Grants a Bonus Die to Climb and Navigate.
  • Stabilization Field: Once per day, the user can spend 10 Magic Points to create a 30-foot “Zone of Equilibrium.” Within this zone, all Luck rolls to avoid environmental catastrophes (collapsing floors, gas leaks, etc.) are made with a Bonus Die.
  • Grapnel: Allows for a Fighting (Brawl) roll to “Falcon Yank” an opponent within 15 yards, pulling them toward the user or knocking them prone.

Blades in the Dark

Name: The Spark-Sinew Hull Item Type: Fine Apex Tool (2 Load, Worn)

Description: A jagged, steam-venting gauntlet that combines an assassin’s edge with a tinkerer’s precision.

Game Mechanics:

  • Quality: This is a Fine item (Tier 3). It provides Potency when used for vertical infiltration or stabilizing dangerous industrial machinery.
  • Special Abilities:
    • Vapor-Leap: You can spend 1 Stress to perform a Prowl or Skirmish action involving extreme verticality (leaping to a rooftop or lunging from a height) as if you were already in a Controlled position.
    • Equalizing Surge: Spend 2 Stress to ignore the consequences of a mechanical failure or environmental hazard for your entire crew for one tick of a clock.
    • Mantis Blades: In a Skirmish, this weapon allows you to trade Position for Effect—you can take a Desperate risk to achieve a Great effect by unleashing the pressurized blades.
  • Flaw: The item is loud. Any Stealth rolls made while the steam vents are active suffer -1 Effect unless the “Quiet Kinematics” passive is specifically invoked.

Dungeons & Dragons (5th Edition)

Name: Spectral Mantis-Engine 9274 Item Type: Wondrous Item (Tool/Weapon), Very Rare (Requires Attunement)

Description: A massive, steam-breathing bracer etched with blue-green bioluminescent runes.

Game Mechanics:

  • Stat Bonuses: While attuned, your Strength and Dexterity scores increase by 2 (to a maximum of 20).
  • Mantis Blades: You are proficient with these blades. They deal 1d8 slashing damage + 1d4 fire damage. They have the Finesse and Light properties.
  • Grapnel Launcher: As an action, you can fire a hook up to 150 feet. If the target is a creature, make a ranged weapon attack. On a hit, the target is grappled (escape DC 16). You can use a bonus action to pull yourself to the target or pull a Medium or smaller target 20 feet toward you.
  • Stone-Breath Barrier (1/Day): As an action, you create a 15-foot-radius sphere of pressurized mist. The area is heavily obscured for others, but you can see through it. Allies inside have resistance to fire and force damage.
  • Guardian Arrest: If you fall, the engine automatically fires at a surface within 60 feet. You take no falling damage if the line connects.

Knave (2nd Edition)

Name: The Heavy Breathing Talon Item Type: Unique Tool/Weapon (1 Slot)

Description: A brass bracer that exhales rhythmic steam. It counts as a single item but provides the utility of three.

Game Mechanics:

  • Quality: 7 (Highly durable obsidian and mithral construction).
  • Stats: Grants a +2 bonus to all Strength or Dexterity saves involving climbing, jumping, or resisting heat.
  • Attack: Deals d8 damage. On a roll of a natural 15-20, the steam vents flare, dealing an extra d4 heat damage.
  • Utility: * Climb: You can scale any surface (even glass or wet stone) at your normal movement speed.
    • The Pulse: Once per day, you may ask the GM for one “Truth of the Stone.” The GM will reveal a hidden passage, a structural weakness, or the location of a nearby ley-line.
    • Safety: You have Advantage on saves against environmental hazards like cave-ins or exploding machinery.
  • Breakage: If the item takes a “Sunder” hit or you roll a critical failure on a climb, the item loses 1 Quality. At 0 Quality, the sinew line snaps and the blades jam until repaired at a forge.

Fate (Core Edition)

Name: 9274 Apex-Gestalt Bracer Item Type: Extra (Requires 2 Refresh)

Aspects: * High Concept: The Mountain’s Heartbeat on My Arm

  • Trouble: Addictive Rhythmic Resonance
  • Flavor: Obsidian Fins and Mithral Talons

Game Mechanics:

  • Skill Bonuses: Gain +2 to Athletics when climbing or moving vertically. Gain +1 to Notice when sensing vibrations or mechanical faults.
  • Stunt: Vapor-Leap Strike: Once per conflict, you can move two zones and make an attack with Fight in a single action. If you have the Balanced Flow aspect on the scene, this attack deals +2 shifts of stress.
  • Stunt: Guardian Arrest: Spend a Fate Point to negate a consequence related to falling or being forcibly moved, provided there is a surface nearby to anchor the sinew line.
  • Mantis Blades: Weapon:2. On a tie when attacking, you may choose to create the aspect Searing Steam on the target with one free invoke instead of taking a boost.

Numenera & Cypher System

Name: 9274 Resonance Gauntlet Item Type: Artifact (Level 6)

Form: A complex forearm apparatus of brass and obsidian that vents silver vapor in sync with the wearer’s pulse.

Game Mechanics:

  • Effect: Provides two assets to all Might and Speed tasks involving climbing, balancing, or vertical movement.
  • Combat: The blades function as a medium weapon that deals 4 points of damage. On a successful strike, the user may spend 2 points from their Speed Pool to deal an additional 2 points of ambient heat damage.
  • Grapnel: As an action, the user can fire a line up to 100 feet. This can be used to pull a willing target or the user toward an anchor point as a move action.
  • Equalizing Pulse (1/day): The artifact siphons ley energy to create a 10-foot (3-meter) barrier for 1 minute. This barrier provides +2 to Armor against heat and force and prevents any nearby machinery from malfunctioning.
  • Depletion: 1 in 1d20. On depletion, the device suffers an Overpressure Hazard and deals 3 points of damage to the user.

Pathfinder (2nd Edition)

Name: Spectral Mantis-Engine 9274 Item Type: Item 10 (Rare, Magical, Mechanical, Steam)

Usage: Worn (forearm); Bulk: 1 Price: 1,000 gp

Game Mechanics:

  • Base Statistics: +2 item bonus to Athletics (Climb) and Perception (Vibration).
  • Mantis Blades: These are +2 striking flaming mantis claws. They deal 2d8 slashing damage plus 1d4 fire damage. They have the Agile, Finesse, and Versatile P traits.
  • Activate: [Two-Actions] (Interact): Equalizing Surge. Frequency: Once per day. You release a 30-foot cone of stabilizing vapor. Allies in the area gain 15 temporary Hit Points and a +1 status bonus to AC against fire and steam for 1 minute.
  • Activate: [One-Action] (Interact): Vapor-Leap. You fire the grapnel (range 100 ft) and use a steam burst to move to the anchor point. This movement does not trigger reactions.
  • Guardian Arrest: [Reaction]: Trigger: You fall at least 10 feet. Effect: If there is a surface within 60 feet, you automatically hook it. You take no damage from the fall and are suspended by the line.

Savage Worlds (Adventure Edition)

Name: 9274 Stone-Breath Talon Item Type: Relic (Tier 3)

Game Mechanics:

  • Attributes: While worn and attuned, the user’s Vigor and Agility increase by one die type (e.g., d6 to d8).
  • Mantis Blades: Damage Str+d8+2, AP 4. These are considered magical weapons.
  • Grapnel: Range 20/40/80. A successful Athletics roll allows the user to pull themselves to an anchor or pull a target of equal or smaller Size toward them.
  • Barrier of Equilibrium (Power): Once per day, the user can cast the Protection power (using Wisdom as the arcane skill) with the Area Effect modifier. The visual trapping is a sphere of terrace-shaped steam.
  • Stone-Breath Vitality: The user gains +2 to Vigor rolls made to resist Environmental Hazards (Heat, Cold, and Pressure).
  • Complication: If the user rolls a Critical Failure on any physical task while using the item, it suffers a Vapor Jam. The item’s magical bonuses are disabled until the user spends an Action to recalibrate the steam vents.

Shadowrun (6th Edition)

Name: 9274 “Stone-Breath” Cyber-Hybrid Rig Item Type: Body-Tech / Arcane Focus (Requires Attunement)

Description: An external forearm rig that interfaces with the user’s nervous system via mana-conductive copper conduits. It combines hydraulic mantis blades with a high-tension grapnel and a localized mana-stabilizer.

Game Mechanics:

  • Rating: 6
  • Essence Cost: 0 (External), but requires a Magic or Resonance attribute to utilize the “Rule-Breaker” stabilization functions.
  • Mantis Blades: (STR+3)P damage, AP -4, Reach 1.
  • Grapnel System: Uses Exotic Weapons skill. Range 5/15/50. Can be used as a Simple Action to reposition or yank a target.
  • Stabilization Matrix: Provides +2 dice to resist Drain or Fading when used as a conduit. Additionally, provides a +2 dice pool bonus to any Engineering tests involving pressure or steam systems.
  • Stone-Breath Barrier: Spend 1 Edge to release a 5-meter cloud of pressurized steam. This counts as a Smoke effect and grants the user +1 Defense Rating for 3 combat turns.
  • Wireless Bonus: The rig synchronizes with your PAN to provide real-time structural analysis, granting +1 to Attack Rating with all melee attacks.

Starfinder (1st Edition)

Name: 9274 Resonant Apex-Harness Item Type: Hybrid Item (Magic and Tech)

Level: 12; Price: 35,000 Credits; Bulk: 1 Slot: Hands (Worn on forearm)

Game Mechanics:

  • Mantis Blades: These function as a linked tactical melee weapon dealing 3d8 Slashing and 1d6 Fire damage. They have the Analog and Powered (Capacity 20, Usage 1) properties.
  • Grapnel (Standard Action): Range 100 ft. You can pull yourself to an anchor point or pull a target up to one size larger toward you (KAC +8 to hit).
  • Atmospheric Stabilizer: The wearer is constantly under the effects of Life Bubble in high-pressure or high-altitude environments.
  • Equalize Pulse (2/Day): As a standard action, expend 5 charges to grant all allies within 30 feet a +2 insight bonus to Saving Throws against environmental effects and energy damage for 1 minute.
  • Guardian Arrest (Reaction): Trigger: You fall more than 10 feet. Effect: The harness auto-fires a line. You stop falling and take no damage. This uses 2 charges.

Traveller (Mongoose 2nd Edition)

Name: 9274 Andean Industrial-Combat Rig Item Type: TL 14 Specialized Equipment

Weight: 6 kg; Cost: Cr 150,000

Game Mechanics:

  • Skills: Provides DM+2 to Athletics (Dexterity) when climbing and DM+1 to Mechanic or Engineer (Power) checks involving steam or pressure.
  • Mantis Blades: Damage 3d6+3. If the user makes an Effect 6+ attack roll, the target’s armor is reduced by 2 for that hit due to steam-pressurized piercing.
  • Grapnel Launcher: Range 50 meters. Can support 500 kg. Provides a DM+2 to any task involving EVA or low-gravity movement.
  • Environmental Stability: The rig automatically compensates for pressure changes up to 10 atmospheres. The user ignores the effects of “Thin” or “Very Thin” atmospheres while the internal Stone-Breath condenser is active.
  • Energy Barrier (Experimental): Once per day, the user may activate the obsidian plates to absorb the damage from one energy-based attack (up to 15 points), converting it into heat that vents harmlessly through the terrace vents.

Warhammer 40,000 Roleplay (Wrath & Glory)

Name: 9274 Sanctified Mantis-Engine Item Type: Rare Technomantic Relic

Keywords: [IMPERIUM], [MECHANICUS], [RELIQUARY] Damage: 6 + 1 ED; AP: -2; Range: Melee / 20m (Grapnel)

Game Mechanics:

  • Mantis Strikes: When you make an All-Out Attack with the Mantis Blades, you gain +1 bonus to your Weapon Skill roll and the weapon gains the Brutal trait for that attack.
  • Rule-Breaker Stabilization: You gain +2 bonus to any Tech (Int) or Scholar (Int) tests involving ancient machinery or warp-unstable ley-tech.
  • Quickfire Ascent: You may use a Move Action to reposition anywhere within 20 meters that has a vertical surface. This movement does not provoke Reflexive Attacks.
  • Vapor Shield (Action): Spend 1 Glory to activate the Stone-Breath vents. For the duration of the combat round, you and any adjacent allies gain +1 Resilience and are considered to be in Light Cover.
  • The Pulse (Passive): You gain +1 b