Should I upgrade Iteration in Slay the Spire 2?

Compare the upgraded text: The first time you draw a Status card each turn, draw 3 cards.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Iteration?

Iteration appears in 1 tracked build: Machine Mind (B-tier, flex pick).

What character uses Iteration?

Iteration is tagged as a Defect card. See the Defect build hub for archetypes that care about it.

Updated for Data 2026-03-17Early Access — numbers may shift with patches.

Iteration

Defect · Power · Uncommon · 1 cost

Base

Upgraded

Card text

The first time you draw a Status card each turn, draw 2 cards.

Iteration+

The first time you draw a Status card each turn, draw 3 cards.

Builds that use Iteration

Archetypes that draft this card in real runs, with the role it plays.

BMachine MindDefect · Flex pick

Build context

See the Defect build hub for archetypes that feature this card in real runs.

Related cards

Iteration FAQ

Should I upgrade Iteration in Slay the Spire 2?: Compare the upgraded text: The first time you draw a Status card each turn, draw 3 cards.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Iteration?: Iteration appears in 1 tracked build: Machine Mind (B-tier, flex pick).
What character uses Iteration?: Iteration is tagged as a Defect card. See the Defect build hub for archetypes that care about it.

Patch history

SpireForge snapshots card text from Untapped exports dated 2026-03-17. When Mega Crit ships a balance patch, we re-run the scraper and refresh every affected URL—see /patches for the editorial log.