At the beginning of the battle, at the start of your turn, change the element of all familiars to Dark and equip a Elemental Manipulation buff to your team. While the buff is active, this ability temporarily decreases DMG taken and increases DMG dealt by 5% and heals yourself for 3% of the lower of the enemies' current/max HP per turn. This buff expires when the enemy team is below 30% of their max HP