Adak Del the Elusive

0: Transform Adak Del the Elusive. You may activate this anytime you could activate an instant.
0: Remove a loyalty counter from each planeswalker an opponent controls. For each counter removed this way, add a loyalty counter to this.
-X: Exile the top X cards of target player's library. Until end of turn, you may cast a spell exiled this way without paying its mana cost.