Emrakul, Off the Moon

Flying, Trample, Protection from Dinosaurs,
Humans, Pirates, Vampires, and Merfolk
When this creature enters the battlefield, put X
+1/+1 counters on Emrakul, Off the Moon, then
gain control of target creature and all creatures
that share a creature type with it
An enigma that vexing is smarter than all of Ixalan