Sludge Spinner

Monster
Health
38/42 HPAny number from 37 to 39, rolled when the fight starts. From 41 to 42 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
UnderdocksMonster room, alone, 1 in 4 from the weak pool (the first 3 fights).
attack8/9debuffWeak1Weak
Sludge Spinner38/38/42/42Sludge Spinner

1st Encounter ·Turn 1

How to beat Sludge Spinner

  • Alone and weak-pool: treat it as a two-turn kill. HP: 37 to 39, so most starting decks get there by turn three.
  • Speed matters: every Rage adds 3 permanent Strength.
  • Weak from Oil Spray: only lasts a turn and only shaves a quarter off attacks, so it rarely changes your plan.
  • If you must block: Slam is the hit worth blocking, since Rage and Oil Spray are under 10 before Strength.
  • Trick: hold Block for the turn after a Rage, since that is when the buffed Slam can come.

Notes

  • HP 37 to 39 (41 to 42 at Ascension 8+).
  • It is one of the four Underdocks weak encounters, so it can only appear in the first three monster rooms of that act.
  • The compendium hides Rage, so the Strength gain is not listed on its bestiary card.

Changes by version

  1. 18 Jun 2026Artv0.107.1
    Repositioned Sludge Spinner's death landing spot
  2. 26 Apr 2026ArtBeta branch
    Repositioned Sludge Spinner death landing spot
  3. 29 Jan 2026NerfInternal playtest
    HP decreased from 39(41)-42(44) to 37(41)-39(42)
All 8 patch notes5 older
  1. 4 Dec 2025Strength23Weak application21Internal playtest
    Strength gain increased from 2 to 3 and Weak application decreased from 2 to 1
  2. 30 Oct 2025NerfInternal playtest
    HP decreased from 41(43)-45(47) to 39(41)-42(44)
  3. 2 Oct 2025ChangeInternal playtest
    Changed Sludge Spinner
  4. 24 Jul 2025SoundInternal playtest
    Added SFX
  5. 15 May 2025AddedInternal playtest
    Added new Sludge Spinner enemy

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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