Winged Dragon of Ra

When this card enters the battlefield, sacrifice it
unless you sacrifice two other creatures. If this
card enters the battlefield and it was not cast
from your hand, sacrifice it at the beginning of
the next end step.
Flying, Lifelink, Hexproof
Pay 2 life, Put a +1/+1 counter on Winged
Dragon of Ra.
Pay 10 life, destroy target nonland permanent.