The Troll Under the Bridge

Bloodthirst 3 (A creature with bloodthirst x enters
the battlefield with x +1/+1 counters on it if an
opponent has been damaged during that turn.)

Devour X (As a creature with devour enters the battlefield, its controller may sacrifice x number of creatures to put x +1/+1 counters on the devouring creature for each creature sacrificed.)


I will eat you up!