NPC DEFENDERhttps://irowiki.org/wiki/NPC_DEFENDER

Defender
Type	Active Skill
Levels	1
Duration	?
Target	Self

Reduces all ranged damage dealt with the caster.

• Although it is similar in function to the Crusader skill Defending Aura, this skill is capable of reducing damage from ranged skills that the latter skill cannot, such as Acid Bomb and Blitz Beat.