Epic Experiment [Outlaws of Thunder Junction Commander]

Set: Outlaws of Thunder Junction Commander Type: Sorcery Rarity: Mythic Cost: {X}{U}{R} Exile the top X cards of your library. For each instant and sorcery with converted mana cost X or less among them, you may cast that card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.