Devesh, Golgari Shaman

Hexproof
Whenever a nontoken creature you control dies
you gain life equal to its toughness and put a
+1/+1 counter on each creature you control.
Undergrowth— Mill X cards and return a creature
card with mana value less than or equal to X
from your graveyard to the battlefield where X is
the number of creature cards in your graveyard.