Should I upgrade Voltaic in Slay the Spire 2?

Compare the upgraded text: Channel Lightning equal to the Lightning already Channeled this combat.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Voltaic?

Voltaic appears in 1 tracked build: Storm Conductor (S-tier, core card).

What character uses Voltaic?

Voltaic 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.

Voltaic

Defect · Skill · Rare · 2 cost

Base

Upgraded

Card text

Channel Lightning equal to the Lightning already Channeled this combat. Exhaust.

Voltaic+

Channel Lightning equal to the Lightning already Channeled this combat.

Builds that use Voltaic

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

SStorm ConductorDefect · Core card

Keywords

Exhaust Channel Lightning

Build context

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

Related cards

Voltaic FAQ

Should I upgrade Voltaic in Slay the Spire 2?: Compare the upgraded text: Channel Lightning equal to the Lightning already Channeled this combat.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Voltaic?: Voltaic appears in 1 tracked build: Storm Conductor (S-tier, core card).
What character uses Voltaic?: Voltaic 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.