Jodah, The Sparkler

X: Gain X mana where X is equal to the number of legendary permanents in your graveyard, battlefield, and exile.
-6: Search your library, graveyard or exile for Jodah, The Unifier and Jodah, Archmage Eternal. Reveal them; put them into your hand.
-20: If you control, Jodah, The Sparkler; Jodah, Archmage Eternal; Jodah, The Unifier, you win the game