Should I upgrade Stone Armor in Slay the Spire 2?

Compare the upgraded text: Gain 6 Plating.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Stone Armor?

Stone Armor appears in 1 tracked build: Barricade Iron Bastion (A-tier, core card).

What character uses Stone Armor?

Stone Armor is tagged as a Ironclad card. See the Ironclad build hub for archetypes that care about it.

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

Stone Armor

Ironclad · Power · Uncommon · 1 cost

Base

Upgraded

Card text

Gain 4 Plating.

Stone Armor+

Gain 6 Plating.

Builds that use Stone Armor

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

ABarricade Iron BastionIronclad · Core card

Keywords

Plating

Build context

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

Related cards

Stone Armor FAQ

Should I upgrade Stone Armor in Slay the Spire 2?: Compare the upgraded text: Gain 6 Plating.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Stone Armor?: Stone Armor appears in 1 tracked build: Barricade Iron Bastion (A-tier, core card).
What character uses Stone Armor?: Stone Armor is tagged as a Ironclad card. See the Ironclad 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.