Sleipnir Horse of the Gods

Bestow {2}{w}{b} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying First Strike
Enchanted creature gets +3+3 and has
Flying and First Strike.
Sleipnir Horse of the Gods Bestow cost is {0} if it targets a God.