Imprisoned Ogre

Imprisoned Ogre enters the battlefield tapped
with an additional+1/+1 counter on it for each untapped creature you control.
{b}, Sacrifice an untapped creature: Imprisoned
Ogre gets +2/+2 and gains trample until end of
turn.
"If you don't get em' into a cage quick, they're more
than likely to break out."—Forael, Town
Guardsman