The Bewilderbeast

Trample

Call of the Wild - Whenever a Dragon you control attacks, you may draw a card. If you do, you gain 2
life.
Domain of Ice - {2}{g}{u}{w},{t}: Create a 4/4
blue and green Dragon creature token with flying and
"When this creature enters the battlefield, tap target permanent. It doesn't untap during its controller's
next untap step."