Gaze of the Temple Caretaker

If there are no creatures on the battlefield, exile
Gaze of the Temple Caretaker.
{w}{u}: Enchant creature. Whenever the enchanted creature deals damage through combat or an ability,
it's owner discards a card and you draw a card.
If a creature enchanted by Gaze of the Temple
Caretaker dies, return Gaze of the Temple
Caretaker to it's owner's battlefield.
You may pay {w}{u} to enchant another creature at
any time.