Riots in the Wreckage

{t}: Add {r}{g}
All red and green creatures you control untap and
gain haste and bloodrush until end of turn . All of
your future creature cards enter with riot. Destroy target blue or white permanent with overall mana
cost 5 or less.
"Gruul won't and can't stop rioting in Ravnica.
It's just too untouched for them."
—Sarkhan, Damage Doer