From: Grimroot
Lore: In the ancient texts of forbidden alchemy, there are whispers of a recipe known as the “Grimroot Venom Elixir.” It is said to harness the deadly essence of Grimroot, a plant shrouded in darkness and known for its high arsenic content. Legends speak of an alchemist who delved into the forbidden arts, discovering the means to extract the concentrated poison from Grimroot. This lethal poison, when prepared as a vial, becomes a potent weapon in the hands of those who seek to eliminate their enemies discreetly. The recipe is passed down cautiously among those willing to take the risk, often hidden away from prying eyes.
Use: The Lethal Poison Vial, created by extracting the concentrated poison from Grimroot, is primarily intended for coating weapons or contaminating food and drink. Its purpose is to incapacitate or kill targets swiftly and quietly. Assassins, spies, and those who deal in shadowy arts find great value in this deadly tool, as it allows them to eliminate adversaries without direct confrontation or suspicion. The vial can be concealed easily, enabling the poisoner to strike with stealth and precision.
Values (Tier One):
Stats:
- Damage: The Lethal Poison Vial inflicts moderate to severe damage, depending on the victim’s constitution and resistance to poison.
- Duration: Once administered, the effects of the poison typically last for several hours, causing weakness, convulsions, and potentially leading to death if left untreated.
- Usage: Each vial contains a single dose of the concentrated poison, enough to coat several small weapons or contaminate a small amount of food or drink.
Skills gained:
- Poison Craft: Characters proficient in poison craft or alchemy have an advantage when preparing the Lethal Poison Vial, ensuring its potency and effectiveness.
- Sleight of Hand: Characters with skill in sleight of hand can apply the poison covertly to weapons or contaminate food and drink without arousing suspicion.
Preparation: To prepare the Lethal Poison Vial, one must acquire Grimroot and extract its concentrated poison. This requires expertise in poison craft or alchemy. The process involves careful handling and containment, as exposure to the poison can be dangerous. Once the poison is extracted, it is stored in a vial, usually made of glass or a non-reactive material, ensuring the poison’s stability and preventing accidental leakage.
Cost: The cost of the Lethal Poison Vial can vary depending on the availability of Grimroot and the risks involved in acquiring it. As a starting point for a level one character, it could range from 50 to 100 gold pieces, representing the rarity and illicit nature of the ingredients.
Process:
- Obtain Grimroot: Characters must venture into shadowy forests or navigate the black market to acquire Grimroot. This may involve dealing with secretive suppliers or taking on dangerous quests to gather the plant.
- Extraction: Characters skilled in poison craft or alchemy carefully extract the concentrated poison from Grimroot. The process involves crushing and filtering the plant matter, isolating the potent arsenic-laden toxin.
- Vial Preparation: The extracted poison is then transferred into a vial, which is sealed and labeled for safe storage and transportation.
Tags:
- Poisonous: The Lethal Poison Vial contains a highly toxic substance derived from Grimroot.
- Rare: Grimroot, the primary ingredient, is a rare plant, making the Lethal Poison Vial uncommon and sought after.
- Illegal: Possession, creation, or use of the Lethal Poison Vial may be illegal in many regions due to its deadly nature.
- Additional: Assassination, Stealth, Clandestine, Toxic, Forbidden, Alchemy, Dangerous, Underground

The sale of the Lethal Poison Vial, created from the concentrated poison of Grimroot, takes place in clandestine and illicit markets. These markets are often found in the underbelly of cities, hidden within shadowy alleys or concealed within secret establishments. The sellers are individuals with connections to the criminal underworld, alchemical black markets, or underground organizations that deal in forbidden substances.
Timing and availability of the Lethal Poison Vial can vary, as it depends on the availability of Grimroot and the risks associated with acquiring it. Characters interested in purchasing the vial would need to seek out informants, contacts, or rumors within the underground community to discover potential sellers. Once a reliable source is found, negotiations for the purchase can take place discreetly, usually in secluded locations or through covert communication channels.
The end result of acquiring the Lethal Poison Vial is to provide characters with a deadly tool for their own purposes. The vial can be used in various ways:
- Coating Weapons: The poison can be applied to the blades of weapons such as daggers, arrows, or darts, enhancing their lethality. When the poisoned weapon pierces the target’s skin, the poison enters their bloodstream, causing severe damage or even death.
- Contaminating Food and Drink: The poison can be discreetly added to food or drink, making it a potent tool for assassinations or incapacitating enemies without raising suspicion. Once ingested, the poison takes effect, causing the target to weaken, convulse, or succumb to its lethal properties.
The usage of the Lethal Poison Vial requires careful planning and consideration. Characters need to approach their targets strategically, ensuring they can administer the poison without detection. It may involve covert actions, such as poisoning a goblet at a banquet, contaminating rations in an enemy camp, or silently coating a blade before a stealthy assassination.
It’s important to note that the possession, sale, and use of the Lethal Poison Vial are highly illegal in most regions due to its dangerous nature. Characters engaging in such activities should be aware of the potential consequences, such as attracting the attention of law enforcement, criminal organizations, or powerful individuals who may seek to eliminate those involved in the trade.
Grimroot’s Venomous Elixir
In the scrolls of forbidden alchemy, there whispers one tale, most famed, of a potion known as the “Elixir of Grimroot’s Venom.” This potion, it is said, was birthed in the darkness of ages past, from the essence of a plant called Grimroot, which held in its veins a deadly poison much like the arsenic of old.
The legend tells of an alchemist, shrouded in mystery, who ventured into the forbidden realms of knowledge. His name, lost to time, but his deed, it remains. He sought to capture the essence of Grimroot, a plant feared for its dark embrace, whose leaves and roots whispered death to all who dared to touch. This alchemist, with hands skilled in the arts most arcane, managed to extract from this plant a liquid so potent, it could fell the mightiest of warriors with but a drop.
This elixir, when sealed within a vial, became an instrument of silent death. It was not for battle in the light of day but for the shadow’s kiss. Assassins, those who walked the paths unseen, found in this vial their most treasured ally. They would coat their blades with this poison, or taint the chalices of those marked for doom, ensuring a death that came with no sound, no struggle, only the quiet slipping away.
The recipe of this elixir was passed in hushed tones, hidden among those who walked the edge of legality and morality. It was a knowledge guarded with life, for the power it held could sway the balance of power, topple kings, or end dynasties in silent nights.
But the tale does not end with its creation or use. The elixir, born from Grimroot, also bore a curse. For each time it was used, the user too was touched by its dark essence. Some say the alchemist who first brewed it met his end by his own creation, a fitting end for one who played with such forbidden forces.
Moral of the Story: Power, especially that which is forbidden, often carries a price, and what is born from darkness may eventually claim its creator.
Suggested conversions to other systems:
Call of Cthulhu (7th Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Equipment (Poison)
- Sanity Loss: 0/1D2; seeing the effects or knowing the method of its creation can lead to sanity loss.
- Potency: 15 (Reflects the poison’s strength in affecting the victim’s health)
- Lethality: 25% (Chance for instant death if not treated)
- Duration: 1D4+1 hours (Time until symptoms fully manifest)
- Use:
- Can be applied to a single weapon or contaminate one serving of food/drink.
- Requires a successful Stealth roll to apply without detection.
- Effects:
- Victims must pass a CON roll (Difficulty: Hard) to resist the poison’s effects. Failure leads to severe incapacitation, potentially death.
- Symptoms include weakness, convulsions, and organ failure.
- Cost: 100+ Mythos Points (reflecting its rarity and danger)
- Game Mechanics:
- Use this poison requires a successful Medicine or Science (Pharmacy) roll to prepare, ensuring it’s not mishandled.
- If used in combat, the poison needs to be applied beforehand with a successful Stealth roll.
- Treatment requires medical attention with a successful First Aid or Medicine roll at a penalty due to the poison’s potency.
Blades in the Dark
Lethal Poison Vial (Grimroot Venom Elixir)
- Item Type: Fine Poison
- Quality: 2 (Reflects its effectiveness)
- Cost: 4 Coin (Due to its rarity and illegal status)
- Effects:
- Potency: High (3 Harm, Lethal)
- Method: Can be applied to weapons or ingested.
- Usage:
- Requires a Tinker or Finesse action to apply without being noticed.
- Stress: Using or crafting can cause 1 Stress to the character due to the moral implications or fear of mishandling.
- Game Mechanics:
- When applied to a weapon or ingested, it adds +2d to the Harm roll due to its potency.
- If detected, it can lead to increased Heat or legal repercussions.
- Crafting requires a successful Alchemy/Poisoncraft roll during downtime, potentially generating Entanglements if mishandled.
Dungeons & Dragons (5th Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Poison (Injury or Ingested)
- Rarity: Rare
- Cost: 100-200 gp
- Damage: 3d6 poison damage on a failed save; half damage on a successful one.
- Save DC: 15 Constitution
- Application:
- Can coat one melee weapon or up to three pieces of ammunition.
- Can contaminate food or drink for one creature.
- Duration: Effects last until treated or for 1 hour, whichever comes first.
- Effects:
- Paralyzed for 1 minute on a failed save, with the possibility of death if not treated.
- Game Mechanics:
- The poison requires an action to apply to a weapon or requires stealth to administer in food/drink.
- An antidote can be created with a successful DC 15 Intelligence (Medicine or Nature) check, or purchased for an additional cost.
- Characters with the Poisoner feat have advantage on checks to apply or craft this poison.
Knave (2nd Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Item Type: Poison
- Cost: 50-100 copper pieces
- Attributes:
- Damage: 1d8+2 Poison Damage
- Save DC: 12 (INT or CON, chosen by the GM based on context)
- Use:
- Can be applied to one weapon or used to poison food/drink for one target.
- Effects:
- On a failed save, the target is poisoned for 1d4 rounds, taking the damage each round.
- On a success, half damage and no additional effects.
- Game Mechanics:
- Applying the poison requires a successful DEX or INT check to ensure proper application without waste or self-harm.
- If the target fails the save, they are at disadvantage on all actions due to the poison’s debilitating effects.
- Crafting requires a successful INT check, using up one day’s worth of downtime and resources.
Fate (Fate Core)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Aspect, Stunt
- Aspect: Deadly Brew of Grimroot – Represents the vial’s lethal nature and its association with dark alchemy.
- Stunt:
- Grimroot’s Kiss: When you use this poison on a weapon or in food/drink, you can invoke this stunt to deal an additional 2 stress to an opponent. Once per scene, you can compel this aspect to make the poison’s effects harder to detect or treat.
- Game Mechanics:
- Applying the poison requires a successful Stealth or Crafts roll to avoid detection or mishandling.
- To counteract the poison, a Lore or Medicine roll against a Good (+3) difficulty is needed.
Numenera & Cypher System
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Artifact (Poison)
- Level: 5 (reflects its potency and rarity)
- Form: A dark glass vial containing a viscous, black liquid.
- Effect:
- When applied to a weapon, the next attack inflicts 5 points of Speed damage (ignores Armor).
- If ingested, the target must make a Might defense roll or suffer 5 damage per round for 3 rounds.
- Depletion: 1 in d6 (chance of being used up after one use)
- Game Mechanics:
- Crafting or identifying this poison requires a successful Intellect-based task with a difficulty of 5.
- Neutralizing the poison would require another Intellect-based task, difficulty 6, or the use of a specific antidote.
Pathfinder 2e
Lethal Poison Vial (Grimroot Venom Elixir)
- Item Level: 7
- Price: 300 gp
- Type: Poison (Injury or Ingested)
- Usage: Held in 1 hand
- Bulk: L
- Activate: 1 action (Interact)
- Saving Throw: Fortitude DC 23
- Effects:
- Stage 1: 3d6 poison damage (1 round)
- Stage 2: 2d6 poison damage and paralyzed (1 round)
- Stage 3: 1d6 poison damage and slowed 1 (1 round)
- Onset: 1 round
- Game Mechanics:
- Application requires a Crafting or Thievery check to apply without detection, DC 15.
- Treating or neutralizing requires a Medicine check with a DC 23.
Savage Worlds (Adventure Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Poison
- Cost: $250 (reflecting its rarity and danger)
- Damage: 3d6, Poison
- Duration: Immediate, with effects lasting until treated or for 1d4 rounds.
- Application:
- Can coat one weapon or poison one dose of food/drink.
- Effects:
- Vigor: Target rolls Vigor; failure results in incapacitation for 1 round, followed by 1 Wound per round until treated or dead.
- Success: Half damage, no incapacitation.
- Game Mechanics:
- Applying the poison requires a successful Stealth roll to remain unnoticed, or a Knowledge (Alchemy) roll to correctly apply or craft.
- Treating the poison effects requires a Healing roll at -2 due to its potency.
Shadowrun (6th Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Toxin
- Vector: Contact/Ingestion
- Speed: 1 Combat Turn
- Power: 10
- Effect:
- Damage: 8P (Physical)
- Resistance: Body + Willpower
- Penalty: -4 dice pool modifier on all actions until treated or for 1d6 minutes post-exposure.
- Antidote: Requires a successful Medicine + Logic (4) test to treat; failure leads to ongoing damage.
- Cost: 1,500¥ (reflecting its rarity and illegal nature)
- Availability: 12R (Restricted)
- Game Mechanics:
- Applying the poison requires an Agility + Stealth test to do so covertly, or a Chemistry + Logic test to create or refine.
- If ingested, the damage is applied directly; if used on weapons, the next successful attack inflicts the poison’s effects.
Starfinder
Lethal Poison Vial (Grimroot Venom Elixir)
- Item Level: 7
- Type: Poison
- Price: 2,500 credits
- Save: Fortitude DC 17
- Usage: 1 use
- Bulk: L
- Effect:
- Onset: 1 round
- Frequency: 1/round for 6 rounds
- Effect: 3d4 poison damage; on a failed save, the target is also staggered for 1 round.
- Cure: 2 consecutive saves
- Game Mechanics:
- Application to a weapon requires a successful Stealth check; ingestion requires a Sleight of Hand check if done secretly.
- Creating or identifying this poison involves a Life Science or Mysticism check.
Traveller (Mongoose 2nd Edition)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Toxin
- TL: 9 (reflecting advanced biochemical knowledge)
- Cost: Cr 1,000 (high due to its rarity and ethical issues)
- Damage: 5D (Endurance)
- Duration: Immediate, effects last until treated or for 1D6 hours.
- Save: Endurance (Difficult -2)
- Effects:
- On failure: Immediate incapacitation, followed by damage each turn.
- On success: Half damage, no incapacitation.
- Game Mechanics:
- Administering the poison requires a Stealth or Deception check to avoid detection.
- Treatment involves a Medicine check at a -2 DM due to the poison’s potency.
Warhammer Fantasy Roleplay 4th Edition (WFRP4e)
Lethal Poison Vial (Grimroot Venom Elixir)
- Type: Poison
- Rarity: Rare
- Cost: 150 Gold Crowns
- Damage: 6 Wounds + SB (Strength Bonus of the user when applied to a weapon)
- Test: Toughness (Challenging -20)
- Effects:
- Failed Test: Immediate 6 Wounds and paralysis for 1d10 rounds, then 1 Wound per round until treated or dead.
- Passed Test: Half damage, no paralysis.
- Game Mechanics:
- Creating or applying this poison requires a successful Trade (Apothecary) or Stealth test, respectively.
- The antidote or treatment requires a successful Heal test at -20 difficulty due to the poison’s potency.
- Possession or use might attract the attention of Witch Hunters or local law enforcement, potentially leading to a Corruption test or legal repercussions.
