Raast Naroda, Corpse Surgeon

Undead Thralls — {b}{g}: Choose a type of counter
from among Vigilance, Reach, Trample, Menace
and +1/+1. The next time one or more Zombies
would enter the battlefield under your control
this turn, they each enter with one additional
counter of the chosen type.
Grim Harvest — {t}; Sacrifice another creature:
Create a 2/2 black Zombie creature token.
You gain 2 life.