Shields are a part of your God Arc that is used to defend or absorb damage from Aragami attacks. There are 3 types of Shields found in all God Eater Games. Bucklers has a quick deploy time but absorbs half the damage Aragami deals. Shields has 3/4 deploy time and absorbs 3/4 damage taken from the Aragami. Tower Shields have the slowest deploy time but absorbs the full damage taken from the Aragami.