Amalgamator event art, Slay the Spire 2

Amalgamator

CLANG! CLANG!!!

You hear the echoes of metal upon metal on the otherside of a wall...

As you press your head against the wall to listen in—the wall opens up, revealing a hulking six-armed figure toiling away.
Its “face” is a swirling vortex of glowing sigils that shift about.

“One with an Ascending Spirit has found my workshop? Let's get COMBINING!”
CLANG! CLANG!!!

The Amalgamator strikes its Bone Anvil.

Memories of combat, attacking, and offensive strategies sharpen with each blow.
Your most ultimate technique returns to you.
CLANG! CLANG!!!

The Amalgamator strikes its Bone Anvil.

Memories of combat, protecting, and defensive strategies sharpen with each blow.
Your most ultimate technique returns to you.
Individual choiceEach player picks their own

What you can obtain

Card
Ultimate Strike
Attack
1
Deal 14 damage.
Ultimate StrikeChoice: Combine Strikes
Card
Ultimate Defend
Skill
1
Gain 11 Block.
Ultimate DefendChoice: Combine Defends
Card removal
2 StrikesChoice: Combine Strikes
Card removal
2 DefendsChoice: Combine Defends

Where it appears

How ? rooms roll ›
Act 2Hive
Only when
At least 2 Strikes and 2 Defends in the deckEvery player, in co-op

What each choice does

Combine Strikes

Remove 2 Strikes. Add Ultimate Strike to your Deck.

Ultimate Strike
Attack
1
Deal 14 damage.
CardUltimate StrikeCard removal2 Strikes
What the game says
CLANG! CLANG!!!The Amalgamator strikes its Bone Anvil.Memories of combat, attacking, and offensive strategies sharpen with each blow.
Your most ultimate technique returns to you.

Combine Defends

Remove 2 Defends. Add Ultimate Defend to your Deck.

Ultimate Defend
Skill
1
Gain 11 Block.
CardUltimate DefendCard removal2 Defends
What the game says
CLANG! CLANG!!!The Amalgamator strikes its Bone Anvil.Memories of combat, protecting, and defensive strategies sharpen with each blow.
Your most ultimate technique returns to you.

Which option to take

Ultimate Strike keeps the Strike tag, so it still feeds Strike payoffs.

How it plays

  • Combine Strikes: opens a removal screen limited to your basic Strikes, takes 2 of them out of the deck and adds Ultimate Strike, a colorless uncommon Attack for 1 Energy that deals 14 damage (20 upgraded).
  • Combine Defends: does the same with 2 basic Defends and adds Ultimate Defend, 1 Energy for 11 Block (15 upgraded).
  • Only rarity-Basic cards with the Strike or Defend tag count, so Twin Strike or Pommel Strike never qualify, and a starter that cannot be removed does not either.
  • There is no option to walk away.

Changes by version

  1. 21 Aug 2025TextInternal playtest
    Amalgamating Anvil to Amalgamator

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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