Chitinous Claw

"“The flesh of your arm clouds and thickens like an approaching storm. As you watch, your once-supple skin ossifies into an impenetrable bone-like structure that shifts with an opalescent depth. It thrums with energy, with an innate ability to harm. To maim. You find yourself stabbing with it unthinkingly, with a grace and ease that was previously unknown to you.” —In-game description"

Effects

 * Reduced Melee Stamina Cost
 * -40 Critical Hit