Blessing of Power

As an additional cost to cast this spell:
Pay 4 life and discard 2 cards from your hand.
Enchanted creature gets:
+5+4, Flying, Trample, Haste,
Wither, Lifelink, and Menace.
On your upkeep discard 2 cards,
if you can't you lose 5 life.
"I can can give you any power... at a price"