Rurlen, Scholary Savant

When you cast a spell, search for a card of that type, reveal it, and put on top of your library. As long as you have that card on top of your library, you may cast it as if it had flash, cast it as if was any mana, and it cannot be countered.
If a spell you cast from the top of your library goes into the graveyard, exile it instead and you lose 3 life unless you pay {w}{u}{b}{r}{g} and exile a ca