Nefarox, Overlord of Grixis{4}{B}{B}
Legendary Creature — Demon
Flying
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Whenever Nefarox, Overlord of Grixis attacks alone, defending player sacrifices a creature.
5/5
Illustrated By Aleksi Briclot