← Card Tier List

Genetic Algorithm

Defect

B β€” Situational
SkillRare1 ⚑

Gain 1 Block. Permanently increase this card’s Block by 3 for the rest of the run.

Why B-tier:

A single card that grows into a huge repeatable Block source over a run β€” slow to start, elite by the end.

Best with:

Long runs, Defensive decks

Genetic Algorithm β€” Slay the Spire 2 Card Guide | STS2 Guide