Should I upgrade End of Days in Slay the Spire 2?

Compare the upgraded text: Apply 37 Doom to ALL enemies. Kill enemies with at least as much Doom as HP.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use End of Days?

End of Days appears in 1 tracked build: The Doom Clock (A-tier, hero card).

What character uses End of Days?

End of Days 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.

End of Days

Necrobinder · Skill · Rare · 3 cost

Base

Upgraded

Card text

Apply 29 Doom to ALL enemies. Kill enemies with at least as much Doom as HP.

End of Days+

Apply 37 Doom to ALL enemies. Kill enemies with at least as much Doom as HP.

Builds that use End of Days

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

AThe Doom ClockNecrobinder · Hero card

Keywords

Doom

Build context

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

Related cards

End of Days FAQ

Should I upgrade End of Days in Slay the Spire 2?: Compare the upgraded text: Apply 37 Doom to ALL enemies. Kill enemies with at least as much Doom as HP.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use End of Days?: End of Days appears in 1 tracked build: The Doom Clock (A-tier, hero card).
What character uses End of Days?: End of Days 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.