Agniya, Master of Spores

Infect
Symbiotic Entity — Whenever a creature
with a -1/-1 counter on it dies, create a 1/2 black
and green Zombie Plant creature token, then put
a spore counter on Agniya, Master of Spores.
Halo of Spores — {b}{g}, Remove a spore counter
from Agniya, Master of Spores: put a -1/-1
counter on target creature.