Siphyrus Dragonbane

+3: Siphyrus Dragonbane is indestructible and cannot be affected by spells or abilities until your next upkeep.
-1: Destroy target dragon card and put two loyalty counters on each planeswalker you control, or destroy target flying creature.
-17: Exile all flying creatures in play, in graveyards and in libraries. Each creature exiled this way is put onto the battlefield under your control.