A Dissonance Knife has a peculiar design, resembling brass knuckles. The handle is red and bends at an almost 90° angle. The blade is black with gold edges and fans out from the handle.
Dissonance is French, with the same meaning as its English counterpart.
Dissonance's ground combo starts with a horizontal spin, followed by a vertical spin in the air, ending with Larxene shooting and twirling forward. The air combo is comprised of a slash upward with one hand, a slash downward with both hands, and finally a Knives-first dive downward.