Should I upgrade Flechettes in Slay the Spire 2?

Compare the upgraded text: Deal 7 damage for each Skill in your Hand.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Flechettes?

Flechettes appears in 1 tracked build: Serpent's Tempo (A-tier, core card).

What character uses Flechettes?

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

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

Flechettes

Silent · Attack · Uncommon · 1 cost

Base

Upgraded

Card text

Deal 5 damage for each Skill in your Hand.

Flechettes+

Deal 7 damage for each Skill in your Hand.

Builds that use Flechettes

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

ASerpent's TempoSilent · Core card

Build context

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

Related cards

Flechettes FAQ

Should I upgrade Flechettes in Slay the Spire 2?: Compare the upgraded text: Deal 7 damage for each Skill in your Hand.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Flechettes?: Flechettes appears in 1 tracked build: Serpent's Tempo (A-tier, core card).
What character uses Flechettes?: Flechettes is tagged as a Silent card. See the Silent 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.