Mistborn Oracle

Foresight - When Mistborn Oracle enters the battlefield, the next instant or sorcery spell you cast has "Reveal the top card of your library. If it's a nonland card with converted mana cost less than this spell's, you may cast it without paying its mana cost. If you don't cast the revealed card, put it into your hand."
Whenever you cast a forseen card, scry 1.