Lyr Rentin, Genius Timeologist

On your upkeep, you may look at the top three cards of your library. If you do, choose a non-land card and put it into your hand, then put the rest on the bottom of your library.
Whenever you cast a spell that would cost 7 or more to cast, search for any instant or sorcery equal to that spell's cost, and you may cast it this turn. Otherwise, exile it and add X mana of any one color