Return of Darigaaz

Choose target dragon creature you control. When
that creature dies this turn, return it to the
battlefield except its a 7/7 called Darigaaz, the
Returned with trample, haste, and "When this
creature dies, create a 0/1 colourless Egg creature
token with "When this creature dies, reveal cards
from the top of your library until you reveal a
Dragon permanent card. Put that card onto the battlefield tapped."" in addition to its other abilities.