Ashes To Ashes (Refined)

You suddenly vanish in a large puff of dense, black smoke, and have a flight speed of 40ft per turn. whilst in this form, you are immune to all damage and may see the people around you as their souls and any moderate magic source with a very limited physical sight (30ft). (think bilbo with the ring on). this dispels after 3 turns or when dispelled. however, you cannot communicate with anyone except by magical means. you also may not attack with anything but the smoke itself (i.e. choking or entering someone's lungs and expanding). when dispelled, an area shaped like your body gets vaporized. Anything without a soul can be vaporized.