Limb Ripper

You rip of a limb from someone and consume it to gain a temporary power buff. Your veins pulse a bright red and your eyes do the same, every part of your body tenses and you start to rip and tear. To the dm's discretion. This feat's power ranges from breaking things such as bones to ripping open chest cavities and breaking jaws. After the ability wears off, the user enters a comatose state in which they can see but can't do anything for the next 4 hours.