Grommash, Warsong Cheif

+4: All creatures you control gain Haste, First Strike, Menace, Intimidate, Trample, and +4/+4
0: Create a Gorehowl artifact token with "Equiped creature gets +10/+1 First Strike, Menace, Intimidate, and Trample
-15: Destroy creatures and artifacts you don't control