Sonic Cannon

"“Metal apparatus protrudes from where your arm once was, slick with your blood. At one end, it has fused irreversibly into your skeleton, while at the other it tapers to a square. The constant movement and heat of the mechanism repeatedly rip open your wounds, but you learn to withstand the pain. You try to make a fist with a hand that no longer exists, and sonic energy spews from the end.” — In-game description"

Effects

 * Replaces Melee with a Sonic projectile.
 * -40 Resistance