Mad Professor

Whenever a creature you control dies, gain 2 life and put a +1/+1 counter on Mad Professor.
{b/g}{b/g}: Create a black and green 1/1 Pest creature token with "When this creature dies, you gain one life."
{w/b}{w/b}: Create a white and black 2/1 Inking creature token with flying.
The might of Silverquill and Witherbloom combined.