Kristoff, The Repentant

+2: Exile Target Creature you control, Return it to the battle field and Scry one
-X: Exile the top X cards of your library, you may play any Card Exiled in this way, put the rest on the bottom of your library
-15: Exile all card from opponents Libraries and Graveyards, you may play any card exiled this way Paying mana as if it were of any color