Golgari Archmage

Deathtouch
Decompose (When this creature dies, put a +1/+1 counter on target creature you control and a -1/-1 counter on target creature you don't control.)
{1}{b}{g}: Create a 1/1 green Saproling creature token with decompose.
Sacrifice a creature, {t}: Add {b} or {g} to your
mana pool.