Vaal Hazak, Corpse Dragon

Effluvium Mist- Whenever Vaal Hazak attacks put
an Effluvium counter on target creature opponent controls.

For Every Effluvium counter on a creature, that creature gets -0/-2

If a creature with an Effluvium counter on it dies, create a 3/3 copy of it that is a Zombie in addition to its other types