Disease

Eminence — As long as Disease is in the command
zone or on the battlefield, If another non-Zombie
creature with contagious would die, exile it. Create a
2/2 black Zombie creature token with Contagious.
Creatures you control with contagious have
wither.
Contagious (Whenever this creature blocks or
becomes blocked by a creature, if that creature doesn't
have Contagious, it gains Contagious.)