Should I upgrade Legion of Bone in Slay the Spire 2?

Compare the upgraded text: ALL players Summon 8. Exhaust.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Legion of Bone?

Legion of Bone appears in 1 tracked build: Osty's Warband (A-tier, flex pick).

What character uses Legion of Bone?

Legion of Bone is tagged as a Necrobinder card. See the Necrobinder build hub for archetypes that care about it.

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

Legion of Bone

Necrobinder · Skill · Uncommon · 2 cost

Base

Upgraded

Card text

ALL players Summon 6. Exhaust.

Legion of Bone+

ALL players Summon 8. Exhaust.

Builds that use Legion of Bone

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

AOsty's WarbandNecrobinder · Flex pick

Keywords

Exhaust Summon

Build context

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

Related cards

Legion of Bone FAQ

Should I upgrade Legion of Bone in Slay the Spire 2?: Compare the upgraded text: ALL players Summon 8. Exhaust.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Legion of Bone?: Legion of Bone appears in 1 tracked build: Osty's Warband (A-tier, flex pick).
What character uses Legion of Bone?: Legion of Bone 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.