Magus of the Unexpected

{2}{g}{u},{t}:Sacrifice Magus of the Unexpected: Shuffle your library, then reveal the top card. If it's a nonland card, you may cast it without paying its mana cost. If it's a land card, you may put it onto the battlefield and return Magus Unexpected to its owner's hand. Activate this ability only as a sorcery.
Who knows what might come out of this?