Ultrealthaed, absorbing abyss

Unless ten cards have been exiled with Ultrealthaed, it isn't a creature.
{x}:Exile target nonland permanent with
mana value x, Ultrealthaed gets either a keyword, ability, or mana ability from that card.
If a card exiled with Ultrealthaed is the eleventh
or more, Ultrealthaed gets +1/+1 instead.