The King's Egg

Indestructible, comes into play tapped
{t}: Search library for up to 5 Legendary Creatures
& place them onto the battlefield under the owner's controller tapped with new creature type "Demon,"
then sacrifice a nonlegendary creature.
(If a sacrifice is not made, you lose the game)
"In this world, is the destiny of mankind controlled
by some transcendental entity or law? Is it like the
hand of God hovering above? At least, it is true that
man has no control, even over his own will." -V