← Boss Cheat Sheet

The Corrupt Heart

Act 4 β€” The Heart Β· HP: 750

Extreme
⚠️Beat of Death is the deadliest mechanic β€” every card you play damages YOU. Keep your deck lean; never add junk cards.
Key Mechanics
  • β€’Beat of Death: every card you play deals damage back to you β€” increases each phase.
  • β€’Has massive Block and Strength buffs β€” requires extreme burst to penetrate.
  • β€’The fight accelerates over time; you must kill it within a limited number of turns.
Strategy

This is the final boss β€” only lean, high-quality decks succeed. Beat of Death punishes playing many cards, so every card must count. Single-turn mega-burst is the optimal win condition.

Moves
Beat of DeathEvery card played deals 1β†’2β†’3 damage to you (increases per phase).
Blood Shot(12 dmg)Single-target hit for 12 damage.
Echo(45 dmg)Massive single-target hit β€” must be Blocked or evaded.
BuffApplies large Block and Strength to itself.
The Corrupt Heart Boss Guide β€” Slay the Spire 2 | STS2 Guide