Aggravation, Lord of War

Rampage 3, Indestructible
Whenever you cast a spell, roll a 6-sided die:
1-2: Creatures you control gain Rampage 1 until
end of turn.
3-4: Rampages costs {0} until end of turn.
5-6: Players cannot activate Rampages until end
of turn.
"Those who need strength, I am here."
—Aggravation