Demonic Vigilantes

Haste
Demonic Vigilantes power is equal to the power
of the creature with the highest converted mana
cost on the battlefield. Demonic Vigilantes
toughness is equal to the toughness of the
creature with the lowest converted mana cost on
the battlefield.

"We're making a statement. This world's going to burn
and out of the ashes we'll make a new one."