Return as a Ghost

If anyone dies, they become a ghost that can possess things and willing creatures and control their movements.  The things must be at most 5 by 8 feet.  The things don’t have infinite strength (pebbles punching through armor) and the ghost can’t glide through more than 2 feet of solid surfaces.  The ghost can also talk, be heard, and use all of their other senses and abilities, so long as they don’t involve physical parts of the ghost’s body.  Damage is chosen by the Dungeon Master depending on the item possessed.  If the item being possessed is damaged, the ghost takes 1/2 of the damage dealt and the item is still destroyed, if it would be destroyed otherwise.  

Disclaimer: The character must die to get this.