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Iron Resolve

Generic Tier I

Forge tier starting tier · forge matching runes to climb

Gate Any unit

Cost 6g

Keyword None

Tier I effect

First time vitality drops below 50%, gain 70 shield

Match two copies of the same rune at the same tier to forge the next tier.

Rune resonance

Every rune you place raises your resonance level by its tier — plus any equipped runic runes — with no upper cap. The resonance itself is equipped from a boss signature reward and empowers all your units, scaling with that level. Browse the resonance runes →