From Fire Emblem Heroes Wiki
|Name||Effect||SP Cost||Inherit Restriction||Type|
|Defiant Def 1||Grants Def+3 at start of turn if unit's HP ≤ 50%.||40||None||A|
|Defiant Def 2||Grants Def+5 at start of turn if unit's HP ≤ 50%.||80|
|Defiant Def 3||Grants Def+7 at start of turn if unit's HP ≤ 50%.||160|
- The Defiant passives trigger before any start-of-turn healing, such as that from an equipped Falchion, or Renewal.
List of Heroes with Defiant Defense
|Defiant Def 3|