Version
Currentv0.107.1 · newest of 5

Accelerant

SilentPowerRare
Poison is triggered 1 additional time.
  • Poison: normally ticks once at the start of the enemy's turn, dealing damage equal to the stack and then dropping by 1.
  • With Accelerant on you: that tick happens 1 extra time, or 2 extra times once upgraded, and each extra tick also lowers the stack by 1.
  • Example: an enemy with 10 Poison takes 10 then 9 that turn and sits at 8 afterward.
  • Rules: the power itself is inert; the Poison power looks for it. Copies stack, and the trigger count never exceeds the current stack.
Character
Type
Power
Rarity
Rare
Cost
1 Energy
Target
Yourself
Unlock
Bigger PreyBeat Act 1 with the Silent

When to take Accelerant

Best once Poison is already your main damage plan and you have big appliers like Deadly Poison or Bouncing Flask. Upgrade early, since extra ticks nearly triple output on tall stacks.

Cards that synergize with Accelerant

Deadly Poison
Skill
1
Apply 5 Poison.
Deadly Poison and Snakebite build the tall stacks that extra ticks cash in.Apply 5 Poison.
Snakebite
Skill
2
Retain.
Apply 7 Poison.
Deadly Poison and Snakebite build the tall stacks that extra ticks cash in.Retain.
Apply 7 Poison.
Bouncing Flask
Skill
2
Apply 3 Poison to a random enemy 3 times.
Bouncing Flask spreads Poison so every enemy ticks twice.Apply 3 Poison to a random enemy 3 times.
Noxious Fumes
Power
1
At the start of your turn, apply 2 Poison to ALL enemies.
Noxious Fumes refills stacks each turn as Accelerant burns them down.At the start of your turn, apply 2 Poison to ALL enemies.
Corrosive Wave
Skill
1
Whenever you draw a card this turn, apply 2 Poison to ALL enemies.
Corrosive Wave applies Poison, which Accelerant builds onWhenever you draw a card this turn, apply 2 Poison to ALL enemies.
Haze
Skill
3
Sly.
Apply 4 Poison to ALL enemies.
Haze applies Poison, which Accelerant builds onSly.
Apply 4 Poison to ALL enemies.
Poisoned Stab
Attack
1
Deal 6 damage.
Apply 3 Poison.
Poisoned Stab applies Poison, which Accelerant builds onDeal 6 damage.
Apply 3 Poison.
Envenom
Power
2
Whenever an Attack deals unblocked damage, apply 1 Poison.
Envenom applies Poison, which Accelerant builds onWhenever an Attack deals unblocked damage, apply 1 Poison.

Relics that synergize with Accelerant

Snecko Skull
Snecko Skull adds a point to every application.Whenever you apply Poison, apply an additional 1 Poison.
Twisted Funnel
Twisted Funnel applies Poison, which Accelerant builds onAt the start of each combat, apply 4 Poison to ALL enemies.
Permafrost
Permafrost triggers on Powers played, and Accelerant is oneThe first time you play a Power each combat, gain 7 Block.
Lost Wisp
Lost Wisp triggers on Powers played, and Accelerant is oneWhenever you play a Power, deal 8 damage to ALL enemies.
Mummified Hand
Mummified Hand triggers on Powers played, and Accelerant is oneWhenever you play a Power, a random card in your Hand is free to play that turn.
Game Piece
Game Piece triggers on Powers played, and Accelerant is oneWhenever you play a Power, draw 1 card.

Changes by version

  1. 16 Jul 2026RarityRareUncommonPlaytest
    Rarity changed from Rare to Uncommon
  2. 8 Jan 2026Bug fixPoisonInternal playtest
    The green Poison overlay on the health bar now properly accounts for the player having both Accelerant card and Soup Recipe relic at the same time
  3. 18 Sep 2025RarityUncommonRareInternal playtest
    Rarity changed from Uncommon to Rare
All 11 patch notes8 older
  1. 10 Jul 2025Bug fixPoisonInternal playtest
    Fixed an issue where killing an enemy with Poison and Accelerant could cause a softlock
  2. 29 May 2025RarityRareUncommonInternal playtest
    Rarity changed from Rare to Uncommon
  3. 6 Feb 2025RarityUncommonRareInternal playtest
    Rarity changed from Uncommon to Rare
  4. 5 Dec 2024Cost21Internal playtest
    Cost changed from 2 to 1
  5. 16 Aug 2024Cost32Internal playtest
    Cost changed from 3 to 2 and upgrade changed from cost reduction to triggering an additional time
  6. 7 Jun 2024Bug fixPoisonInternal playtest
    When you have Accelerant and an enemy has exactly 2 Poison, their Poison now properly triggers twice
  7. 26 May 2023InterfacePoisonInternal playtest
    Make Poison health bar overlay reflect Accelerant
  8. 5 May 2023CostInternal playtest
    Accelerant nerf. Cost from 2 to 3

Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

Purchase today
If you haven't bought Slay The Spire 2 yet, it's time. Support the devs, they made an amazing game.Get it on Steam