Mingo, Lord of the Arctic

+1: Put a +3/+1 counter on target blue creature you control. That creature can't block for the rest of the game.
0: When this planeswalker dies, return it to the battlefield as its previous form, Mingo, Destroyer of the Seas.
-X: Remove all counters and abilities from X creatures your opponent controls. If X is smaller than 5, this ability does nothing.