Should I upgrade Bloodletting in Slay the Spire 2?

Compare the upgraded text: Lose 3 HP. Gain 3 Energy.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Bloodletting?

Bloodletting appears in 1 tracked build: Bloodthirsty Rite of Rupture (B-tier, core card).

What character uses Bloodletting?

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

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

Bloodletting

Ironclad · Skill · Common · 0 cost

Base

Upgraded

Card text

Lose 3 HP. Gain 2 Energy.

Bloodletting+

Lose 3 HP. Gain 3 Energy.

Builds that use Bloodletting

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

BBloodthirsty Rite of RuptureIronclad · Core card

Build context

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

Related cards

Bloodletting FAQ

Should I upgrade Bloodletting in Slay the Spire 2?: Compare the upgraded text: Lose 3 HP. Gain 3 Energy.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Bloodletting?: Bloodletting appears in 1 tracked build: Bloodthirsty Rite of Rupture (B-tier, core card).
What character uses Bloodletting?: Bloodletting is tagged as a Ironclad card. See the Ironclad 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.