Updated for Data 2026-03-17Early Access — numbers may shift with patches.
Heirloom Hammer
Regent · Attack · Rare · 2 cost
Base
Upgraded
Card text
Deal 17 damage. Choose a Colorless card in your Hand. Add a copy of that card into your Hand.
Heirloom Hammer+
Deal 22 damage. Choose a Colorless card in your Hand. Add a copy of that card into your Hand.
Builds that use Heirloom Hammer
Archetypes that draft this card in real runs, with the role it plays.
Build context
See the Regent build hub for archetypes that feature this card in real runs.
Related cards
Heirloom Hammer FAQ
- Should I upgrade Heirloom Hammer in Slay the Spire 2?
- Compare the upgraded text: Deal 22 damage. Choose a Colorless card in your Hand. Add a copy of that card into your Hand.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
- What builds use Heirloom Hammer?
- Heirloom Hammer appears in 1 tracked build: Borrowed Arsenal (A-tier, core card).
- What character uses Heirloom Hammer?
- Heirloom Hammer is tagged as a Regent card. See the Regent 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.