Judgement Dragon

Flying, Vigilance
This card costs {w} less for every 4 White creatures in your graveyard with different names.
Pay 5 life: Destroy all other nonland permanents on the field. Activate only as a sorcery.
At the end of each your turns, Mill 4.

"On the purest white wings He comes. For the righteous He brings salvation. For the evil He brings judgement" - Prayers of the Lightsworn