When Max HP < 60%: P. Def. +400 When hit, increases P. Atk. on enabling the Knight's Fortress effect. (Trigger cooldown: 10 sec.) <Skill upgrade> Ultimate Defense Lv. 3 → Ultimate Defense: Frontier - Increases Spirit Ore consumption. - Reduces cooldown. - Boosts Enhanced Body. - Increases Shield Defense Ignore Removal. - Adds received AoE damage reduction.