Fellmount Chieftain

Trample, haste
Fellmount Chieftain can't block.
Ravage - When Fellmount Chieftain enters the battlefield, if a creature you control dealt damage
to an opponent, Fellmount Chieftain gains
+2/+0 and double strike until the end of your
next turn.
"And thus rivers of fire and many wolf riders issued
forth from Thangorodrim's peaks."