
Steam Eruption
Buff
When killed, deals damage at the end of your next turn.
Steam Eruption is the Waterfall Giant boss mechanic.
Pressurize gives 15 stacks (20 on Ascension 9) and every other move adds 3.
When the Giant is killed it does not leave combat: its HP becomes effectively infinite, it spends one enemy turn showing a stun intent while it stores the stack count and drops the power.
On the following enemy turn it erupts for that stored amount and then dies for real.
Kind
Buff
BuffStacks
Yes
Applied by
1 enemy
Where it comes from
Enemies that apply Steam Eruption
Notes
Combat cannot end while it is in this state. The eruption is a real monster attack, so your Block, its Strength and Weak on it all apply. Killing it quickly keeps the number small; stalling lets it pile on 3 per turn. A kill on turn 1 still means two more enemy turns before the blast, so build Block for the second one.
Changes by version
- Updated wording
- Now gains more Steam EruptionChangeInternal playtestAlso gains Steam Eruption whenever it heals
- Steam Eruption starting amount increased from 6 to 7
All 5 patch notes2 older
- Waterfall Giant now gets the stunned intent before the Steam Eruption turn
- Steam eruption attack ins now affected by Weak
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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Waterfall Giant