Should I upgrade Defend in Slay the Spire 2?

Compare the upgraded text: Gain 8 Block.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.

What builds use Defend?

Defend appears in 1 tracked build: Barricade Iron Bastion (A-tier, flex pick).

What character uses Defend?

Defend 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.

Defend

Ironclad · Skill · Basic · 1 cost

Base

Upgraded

Card text

Gain 5 Block.

Defend+

Gain 8 Block.

Builds that use Defend

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

ABarricade Iron BastionIronclad · Flex pick

Build context

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

Related cards

Defend FAQ

Should I upgrade Defend in Slay the Spire 2?: Compare the upgraded text: Gain 8 Block.. If the upgrade lowers cost, adds damage/block, or enables a combo piece, it is usually high priority.
What builds use Defend?: Defend appears in 1 tracked build: Barricade Iron Bastion (A-tier, flex pick).
What character uses Defend?: Defend 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.