Flare Blade is Roy's neutral B move. Marth has a similar move called Shield Breaker. Flare Blade can be charged for up to four seconds by holding the B button. When fully charged it does 50% damage and delivers a one-hit KO (except on larger stages, like The Temple). Roy takes 10% damage from the explosion of the fully charged attack. Flare Blade has the potential to break shields when it is charged up to a point.