Armored Troll of Mordor

Trample (This creature can deal excess combat
damage to the player or planeswalker it's attacking.)
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block
as long as it has a +1/+1 counter on it.)
When Armored Troll of Mordor enters the battlefield, its fights target nonlegendary
creature. (Each deals damage equal to its power to
the other.)