Slay the Spire 2 Wiki

Card

Boot Sequence

Innate. Gain 10 Block. Exhaust.

Boot Sequence is an uncommon Defect skill costing 0 Energy with Innate that gains 10 Block and Exhausts. The Innate keyword guarantees it appears in your opening hand, providing reliable early-game defense on the very first turn. The Exhaust ensures it never clogs future draws after its one-time use.

Boot Sequence provides a strong opening alongside Charge Battery, which also gives first-turn defense plus next-turn Energy. Hologram can retrieve exhausted cards but Boot Sequence is usually better as a one-time effect. Machine Learning and Skim help maintain card flow after Boot Sequence thins the deck.

For the Defect, Boot Sequence is an excellent pickup that provides guaranteed turn-one Block. Against aggressive bosses like Vantom and Soul Fysh, the 10 free Block can be the difference between surviving and dying before your engine comes online. The Exhaust means your deck is effectively one card smaller after turn 1, improving future draw quality. Pick Boot Sequence in any Defect deck that needs early survivability.

Details

Card TypeSkill
Cost0
RarityUncommon
TargetSelf
Effect TextInnate. Gain 10 Block. Exhaust.

Character

NoindexYes
In GameConfirmed

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Quick Facts

Type
Card
Confidence
High
Verified
Mar 12, 2026