Woodland Stomper

Whenever a Forest enters the battlefield, green creatures you control get +1/+1 and gain trample until end of turn.
Earthquake 2 - {r}{r} ({r}{r}: This creature deals 2 damage to each creature. Each creature dealt damage this way can't attack this turn. Activate this ability only once each turn.)
"Do you hear him roaming the woods, do you feel the earth shaking under his feet? Run, then!"