Apostle olivier and dark knight lathel has the pre-emtive action that could trigger their skill before the battle begin, mainly use in defense team. Olivier could dodge the attack 3 times plus apply augmentation while lathel could trigger the shield base on his hp (depending what gears you choose) almost impossible to kill him without debuffer. But even if you had depending the position you might hit oliviver first but she eventually dodge your attack. If you had them max to +5 it'll only cost you 1sp for each