Legend Of The Ur-Dragon

Enchant Creature
Enchanted Creature gains flying, is a five-colored dragon in addition to other types, and gets +2/+2.
When Legend Of The Ur-Dragon leaves the battlefield, if it has a death counter on it, exile it. Otherwise put a death counter on it and return it
to the battlefield as a 7/7 five-colored Elder
Dragon Legend creature token with flying,
trample, and rampage 2.