Grima Wormtongue

Whenever you sacrifice a creature, put an
influence counter on Grima Wormtongue.
{t}{u}{b}: Sacrifice target creature you control
{t} Remove any number of influence counters
from Grima Wormtongue: Gain control of
target creature with toughness equal to the
number of influence counters removed from
Grima Wormtongue.
"He is a herald of woe... He's not welcome."