Vezilek, Lich Ascendant

As long as Vezilek, Lich Ascendant has an aeon counter on it, it is a God in addition to its other types and has indestructible.
At the beginning of each upkeep, if it is an extra turn, put an aeon counter on Vezilek, then create a 2/2 black Zombie creature token for each aeon counter on it.