Phyrexian Rebirth [Mirrodin Besieged]

Set: Mirrodin Besieged Type: Sorcery Rarity: Rare Cost: {4}{W}{W} Destroy all creatures, then create an X/X colorless Phyrexian Horror artifact creature token, where X is the number of creatures destroyed this way. As long as one drop of the oil exists, the joyous work continues.