Nicol Bolas, Spark Eater

+2: Choose one: Draw a card, deal 3 damage to any target, or target player discards a card.
-4: Exile target non-bolas planeswalker. Put a loyalty counter on Nicol Bolas, Spark Eater for each loyalty counter that was on that planeswalker.
-13: Remove all permanents your opponents control from the game. Draw cards and gain life equal to the number of permanents removed this way.