Deal four physical attacks to one target, and remove delay from the user's physical attacks for one turn.
Extra Slice is a physical ground Bravery to Bravery attack for Onion Knight, learned after obtaining Multi-Hit. It requires 30 CP to equip (15 when mastered), 90 AP to master, and can induce Wall Rush.
Extra Slice returns as a Bravery to Bravery attack for Onion Knight, now requiring 10 CP to equip (5 when mastered) and 120 AP to master.
Extra Slice is a Burst Mode ability exclusive to Vessel of Fate Burst Soul Break that replaces the Attack command. The user strikes the target four times, each hit dealing 48% damage potency of a conventional attack totaling for 188% damage, and allows to instantly use the next physical attack.