Barrage

Volume rather than force is the whole idea of Barrage, an augmentation ability that throws rapid consecutive punches once it is active. It lifts punching speed and general movement speed together, so the user gets around faster than an average person, and while it runs their eyes glow and an aura in their hair colour gathers on their fists. No single punch lands much harder than an ordinary one. The count is what does the work: a competent opponent cannot block every one of them and is left almost no room to counter. A high enough defense stat blunts the whole approach, and because the user has to stay fixed on their target, someone else can come at them from the side.