Two-Tailed Rat

Monster
Health
19/20 HPAny number from 17 to 21, rolled when the fight starts. From 18 to 22 from Ascension 8.
Gold
1511 goldAny amount from 10 to 20, rolled when the fight ends. 7 to 15 from Ascension 3.Any amount from 7 to 15, rolled when the fight ends. 10 to 20 below Ascension 3.
Found in
Underdocksthe Two-Tailed Rats fight, 1 in 10 from the normal pool.
See fight
Part of
Two-Tailed Rats fightOne of its opening enemies.
attack8/9
Two-Tailed Rat19/19/20/20Two-Tailed Rat

When called in as backup ·Turn 1

How to beat Two-Tailed Rat

  • Two-move rule: the earliest a starting rat can call is its third turn, so you have a two-turn window to thin the pack.
  • HP: 17 to 21 each. Multi-target damage is the answer: three rats are only about 20 damage a turn, but every backup is a fresh rat and the pack can grow by three.
  • A rat showing the summon intent dies first: kill it before it acts and the call never happens.

Notes

  • 17 to 21 HP each (18 to 22 at Ascension 8+).
  • Its only encounter is Two-Tailed Rats, a normal fight in the Underdocks: three rats in the last three of five slots, with the spare slots and any freed by deaths open for backups.
  • The three-call limit is shared by the whole pack, newcomers included.

Changes by version

  1. 15 Jan 2026SoundInternal playtest
    Added or updated SFX
  2. 22 May 2025NerfInternal playtest
    Nerfed Two-Tailed Rat
    ArtInternal playtest
    Added animations for various enemies

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