Updated for Data 2026-03-17Early Access — numbers may shift with patches.
Bone Shards
Necrobinder · Attack · Uncommon · 1 cost
Base
Upgraded
Card text
If Osty is alive, he deals 9 damage to ALL enemies and you gain 9 Block. Osty dies.
Bone Shards+
If Osty is alive, he deals 12 damage to ALL enemies and you gain 12 Block. Osty dies.
Builds that use Bone Shards
Archetypes that draft this card in real runs, with the role it plays.
Build context
See the Necrobinder build hub for archetypes that feature this card in real runs.
Related cards
Bone Shards FAQ
- Should I upgrade Bone Shards in Slay the Spire 2?
- Compare the upgraded text: If Osty is alive, he deals 12 damage to ALL enemies and you gain 12 Block. Osty dies.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
- What builds use Bone Shards?
- Bone Shards appears in 1 tracked build: Osty's Warband (A-tier, flex pick).
- What character uses Bone Shards?
- Bone Shards is tagged as a Necrobinder card. See the Necrobinder 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.