Item type: trinket
Activate once per rest, recharges once per rest.
You take on the form of the avatar [insert deity here] and experiences several changes in your appearance, behavior and abilities.
If you at the moment of activation you are already are shape shifted you'll benefit from all forms.
Thought we could use some shape shifting on an item, would be fun to see some wright+bear+woad running around just before they ascend into godhood.