Belzarond, Void's Greed

Menace, flying.
{2}{b}, {t}: Target player loses X life, unless they sacrifice X nonland permanents, where X is 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.)