
Effect: Apply Team Buff
Target: All Allies
Critical Damage +70%.
Effect: Apply Buff
Target: 2 allies with lowest HP
Sustained Heal: Recover HP equal to 18% of Caster's Attack every 1 Second(s).
Target: All Allies
Effect 1: Apply Buff
Target: All Allies excluding the Caster
Shield: Create a shield that blocks damage equal to 200% of Caster's Attack.
Effect 2: Apply Buff
Damage Reduction +10%.
Effect 1: Apply Buff
Target: All Knight Class Allies
Melee Attack +150%, Additional Damage +25%.
Effect 2: Apply Buff
Target: Alll Allies
Sustained Heal: Recover HP equal to 25% of Caster's Attack every 1 Second(s).
This stat only works if the boss has passive skills giving him damage reduction. If not, it's useless.
Avalon, Reincarnation of Stars and Raids usually all have this passive, but always double check to make sure.