Embodiment of Oblivion

Enchant exile
Enchanted exile is a 1/1 Avatar creature with vigilance and lifelink.
Enchanted exile gets +X/+X, where X is the number of cards in it.
Whenever enchanted exile attacks, exile cards equal to its power in any combination from other zones except the battlefield.
If enchanted exile would leave the battlefield, instead exile all other nonland permanents.

A spectral force born from the unending expanse of nothingness.