Winged Dragon of Ra

Flying, Hexproof, Trample, Haste, Protection
from Instants and Sorceries, Can't be Countered.
When Winged Dragon of Ra attacks you sacrifice
any number of creatures to increase its power
and toughness equal to that of the sacrificed
creatures.
{p/c}{p/c}{p/c}{p/c}Destroy Target Creature.
{p/c}Winged Dragon of Ra gains +1/+1.