Corwinnn, Knight-Errant

+1: Put a +1/+1 counter on up to one target creature.
-1: Create a 1/1 white Soldier creature token. You may tap two untapped lands you control. If you do, draw a card.
-3: Until your next turn, Corwinnn becomes a 3/3 Squirrel Knight creature and gains protection from everything. He is still a planeswalker.