Gambol, Genius Wizard

0: You can use the abilities of planeswalkers any time you could use an instant.
+2: Scry X, then draw 2. Target player then mills 2 cards. X is equal to the amount of loyalty counters on Gambol.
-7: You create an emblem that says "You have no maximum hand size" and "If you would draw a card while your library has no cards in it, you win."