Kief, Trickster Savant

+1: Look at the top card of your library. You may place it back on the top, put it on the bottom of your library, or into your graveyard.
-2: Target instant or sorcery in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.
-7: Until the EOT, you may cast instant and sorcery spells from your graveyard as though they were in your hand. Exile them if they leave the stack.