Yxaltyr, Crusher of Cities

When Yxaltyr, Crusher of Cities enters the battlefield, sacrifice a creature you control, a land you control, an artifact you control, an enchantment you control and a planeswalker you control or sacrifice Yxaltyr, Crusher of Cities.
Hexproof, Trample, Menace, Indestructible
Desire of greatness is a godlike sin.