Treebeard

Trample, last strike (this creature deals combat
damage after creatures without last strike)
Unite - Creatures you control with other color identities have trample.
Creatures your opponents control lose haste and
cannot have or gain haste.
"Hoo now! Not so hasty. You are in my country.
What are you, I wonder? You do not seem to come in
the old lists that I learned when I was young."
Treebeard to Merry and Pippin