Merge the Legends

As an adictional cost to activate this spell,
sacrifice a Legendary Creature.
Reveal from your hand, library or exile, a
Legendary Creature with converted mana
cost 6 or greater with at least two Subtypes;
discard, sacrifice or exile from your
greveyard at least two creature cards with
at least one of the revealed card Subtypes;
you may summon the revealed creature.