Neither are most leg attacks. You are the scum of the battlefield. You feed of the waste of other claydonians. Anytime there is a missile fired, a claydonian killed, or any other clay bits sitting around you may go and take hit points from what is left over. Missile will provide 1d6 hitpoints.
Sources dissappear after use.
Then, at anytime during your turn, you may attempt to shape change. You lost hitpoints will carry over from one shape to the next. Note that the lost hit points are what carries over, not those that are left. You may only atack with one form per round. Multiple changes in a round are possible, but you may not attempt to change the same round you are unsuccessful.