Belzarond, Void's Predator

Flying, trample
{2}{g}, {t}: Creatures you control gain trample
and get +X/+X where X is equal to the number
of Demons you control.
Partner with any number of different Belzarond
(When this creature enters the battlefield, target
player may put any number of different creatures
named Belzarond into their hand from their
library, then shuffle.)