Thorns

Thorns

Buff
When hit by an attack, deal damage back.

Thorns hits back. When the owner is about to take damage from an attack that scales with powers, the attacker takes damage equal to the Thorns stacks first, once per hit, so a 3-hit attack into 4 Thorns eats 12. The return damage is unpowered, so Strength and Vulnerable do not change it, and it can be blocked. It never decays.

Kind
ThornsBuff
Stacks
Yes
Applied by
2 cards, 2 enemies, 1 relic2 cards, 2 enemies, 1 relic, 1 potion

Where it comes from

Cards that apply Thorns

Abrasive
Power
3
Sly.
Gain 1 Dexterity.
Gain 4 Thorns.
Sly.
Gain 1 Dexterity.
Gain 4 Thorns.
Caltrops
Power
1
Whenever you are attacked, deal 3 damage back.
Whenever you are attacked, deal 3 damage back.

Relics and potions that apply Thorns

Enemies that apply Thorns

Notes

Player sources: Abrasive (4, or 6 upgraded, plus 1 Dexterity), the event card Caltrops (3, or 5), Bronze Scales (3 at combat start) and Liquid Bronze (3). Spiny Toad and Toadpole carry it against you. Omnislice is special-cased to trigger it even though its spread damage is not a powered attack. Thorns damage never triggers other Thorns, so two prickly creatures never loop.

Rules and timing

It only counts damage from Attack cards and enemy attacks. HP loss and damage dealt by relics, potions and other powers do not count.

Changes by version

  1. 16 Jul 2026Bug fixPlaytest
    Fixed card effects breaking when a player dies while their own card is still resolving (e.g. to Thorns)
  2. 26 Feb 2026Bug fixFabricatorInternal playtest
    Killing the last non-minion enemy with Thorns while it's attacking and summoning a minion in the same move (such as Fabricator) now properly ends combat
  3. 12 Feb 2026NerfAbrasiveInternal playtest
    Nerfed Abrasive card: Thorns decreased from 5(8) to 4(6)
All 17 patch notes14 older
  1. 5 Feb 2026ChangeOstyInternal playtest
    Osty now uses the player's block when he is dealt damage directly (for example, when using an Osty attack on an enemy with Thorns)
  2. 20 Nov 2025UpgradeAbrasiveInternal playtest
    Changed Abrasive card: changed upgrade from +1 Dex and +2 Thorns to +3 Thorns
    Bug fixInternal playtest
    Fixed a softlock when killing Doormaker boss with Thorns power
  3. 16 Oct 2025Bug fixInfernoInternal playtest
    Fixed an issue where killing an enemy with Thorns after playing Inferno card could cause a softlock
  4. 18 Sep 2025ChangeInternal playtest
    Thorns increased from 4(6) to 5(7)
    Bug fixTest SubjectPainful StabsWoundInternal playtest
    Test Subject monster's Painful Stabs power now properly gives Wound cards even when its owner dies to Thorns power
  5. 27 Aug 2025Bug fixDashInternal playtest
    Dash card now properly gains block before attacking, protecting the player if the enemy has Thorns power
  6. 7 Aug 2025Bug fixOmnisliceInternal playtest
    Omnislice card's second hit now properly triggers Thorns
  7. 24 Jul 2025Bug fixInternal playtest
    Creatures no longer play the hurt animation when taking damage from Thorns power
  8. 22 May 2025ChangeInternal playtest
    Thorns decreased from 3(4) to 2
  9. 20 Feb 2025Bug fixOstyInternal playtest
    Osty now properly plays his death animation when he dies to Thorns during a multi-hit attack
  10. 10 Oct 2024Bug fixInternal playtest
    Burrowing Bug now stays Dizzy if Burrow is cleared by Thorns
  11. 31 May 2024TextInternal playtest
    Improved Thorns wording clarity
  12. 4 May 2024BuffOstyInternal playtest
    Buffed Barbs+: Thorns granted to Osty changed from 6 to 7
  13. 2 Jun 2023Bug fixInternal playtest
    Make Thorns trigger even if creature with it is killed
  14. 21 Apr 2023Bug fixFlame BarrierInternal playtest
    Fix Flame Barrier + Thorns damage loop

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

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