Boss Hub

Boss prep starts before the boss room

Beat Slay the Spire 2 bosses with matchup guides, final shop planning, potion jobs, scaling checks, and current beta fight notes.

4

Deck Jobs

A10

Risk Level

v0.107.1

Main Context

Boss checklistCheck damage, defense, scaling, potions, and final campfire decisions.Aeonglass updateRecheck current main-branch boss prep and matchup assumptions.Skulking ColonyPrepare for multi-threat turns, AoE needs, and emergency potion jobs.Monster databaseCheck HP ranges, encounters, and documented moves before a run.

Recommended Path

Start with these guides

More Reading

Useful supporting pages

Quick Answers

FAQ

Why do strong decks still lose to bosses?

Most boss losses come from missing one deck job: scaling, burst defense, potion coverage, or draw consistency. Boss preparation starts several nodes before the fight.

Which boss should I study first?

Start with Aeonglass and Skulking Colony because they expose slow setup, poor hand quality, and decks that cannot answer several problems in one turn.