Shadow Bound

Your shadow has been possessed by a mysterious entity. Your shadow now speaks with you telepathically, and will perform special actions if you ask it to; otherwise it imitates a typical shadow. Some of the unusual abilities your shadow now posses are: separating from you to move along any surface that isn't obscured by darkness, change it's size or shape, temporarily maintain a corporeal form for 1 round, or magically switch places with you (3 times per day).