Twice a day, as an action, you may pick an object you can touch, and transform into that. For all purposes, you look, smell, feel, and sound the same as the object. This mimicry requires a DC 17 perception check to notice. While in this state, you are immobile, and all attacks from and against you are considered critical hits. You may maintain the shape for 1 hour and attacking or being attacked causes the mimicry to fail.