Fuhen, Blades Aplenty

+1: Until end of turn, Fuhen, Blades Aplenty becomes a 4/4 Human Samurai creature with Indestructible and Double Strike that's still a planeswalker.
+1: Put a blade counter on any target permanent.
-10: Exile all permanents with blade counters on them. For each permanent exiled this way, draw a card and gain 2 life.