Erik, Aether Prodigy

: Aethercharged (When removing loyalty counters from this Planeswalker to activate a loyalty ability, you may instead pay twice that much energy)
+1: Exile the top card of your library. You may play that card this turn by paying an energy in addition to its other costs.
-4: Exile target permanent with mana value 3 or less. Create a 3/3 Construct artifact creature token