Ioun Stone of Sustenance:
While Ioun Stones themselves come in a variety of forms and functions, they all share some similar abilities: the stone can be tossed in the air with an Action where it will orbit 1-3' above the head of the user, the stone has AC 24 and 10 HP and is Resistant to all forms of damage, and the user can use an action to grab and stow the stone or someone can make a DC 20 Acrobatics check to try and steal it.
While a Stone of Sustenance orbits you, you do not require food or drink.
This item requires attunement.