Should I upgrade Haunt in Slay the Spire 2?

Compare the upgraded text: Whenever you play a Soul, a random enemy loses 8 HP.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Haunt?

Haunt appears in 1 tracked build: Soul Harvest (B-tier, core card).

What character uses Haunt?

Haunt 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.

Haunt

Necrobinder · Power · Uncommon · 1 cost

Base

Upgraded

Card text

Whenever you play a Soul, a random enemy loses 6 HP.

Haunt+

Whenever you play a Soul, a random enemy loses 8 HP.

Builds that use Haunt

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

BSoul HarvestNecrobinder · Core card

Keywords

Soul

Build context

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

Related cards

Haunt FAQ

Should I upgrade Haunt in Slay the Spire 2?: Compare the upgraded text: Whenever you play a Soul, a random enemy loses 8 HP.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Haunt?: Haunt appears in 1 tracked build: Soul Harvest (B-tier, core card).
What character uses Haunt?: Haunt 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.