Rakdos, Master of Hunger

Menace, Deathtouch, Trample
As an additional cost to cast this spell, sacrifice X
creatures.
When Rakdos, Master of Hunger enters the
battlefield, each opponent loses X life and you
create X 2/2 black and red Devil Zombie
creature tokens with "When this creature dies,
each opponent loses 1 life."
{b/r}{b/r}, Sacrifice a creature: Regenerate target
creature you control.