Seath The Scaleless

Bestow {2}{w}{u}{b}{r}{g} (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, vigilance, trample, lifelink
Enchanted creature gets +4/+4 and has flying,
first strike, vigilance, trample, and lifelink.