Should I upgrade Null in Slay the Spire 2?

Compare the upgraded text: Deal 13 damage. Apply 3 Weak. Channel 1 Dark.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Null?

Null appears in 1 tracked build: Umbral Engine (A-tier, core card).

What character uses Null?

Null is tagged as a Defect card. See the Defect build hub for archetypes that care about it.

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

Null

Defect · Attack · Uncommon · 2 cost

Base

Upgraded

Card text

Deal 10 damage. Apply 2 Weak. Channel 1 Dark.

Null+

Deal 13 damage. Apply 3 Weak. Channel 1 Dark.

Builds that use Null

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

AUmbral EngineDefect · Core card

Keywords

Weak Channel Dark

Build context

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

Related cards

Null FAQ

Should I upgrade Null in Slay the Spire 2?: Compare the upgraded text: Deal 13 damage. Apply 3 Weak. Channel 1 Dark.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Null?: Null appears in 1 tracked build: Umbral Engine (A-tier, core card).
What character uses Null?: Null is tagged as a Defect card. See the Defect 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.