Rending Claw

"“Your left forearm is strangely numb and discoloured. Prodding it, you are reminded of slabs of raw meat more than living tissue. You watch in horror as the flesh begins to separate at the elbow, sluicing off to reveal something contained inside. Finally, your old forearm falls away completely, leaving you with a small, claw-like appendage that juts strangely from inflamed and bloody flesh.” —In-game description"

Effects

 * Melee Stamina Cost Reduced
 * Melee Cooldown Reduced
 * - 40 Critical Hit