It might seem like an upgrade, but giving the opponent two treasures can sometimes be way worse for you than giving them a 2/2 flier
His final ability is a -3 ability (meaning you can use it the turn Commodore Guff comes out) reads: You draw X cards and Commodore Guff deals X damage to each opponent where X is the number of Planeswalkers you control. Obviously, if you have a lot of Planeswalkers out, this is very strong
You may reveal a creature card of the chosen type from among them and put it into your hand
There I did 10 cards for 10, I'm going to up the budget this time however as these are what Wizards considers a premium product, so commands a higher price tag
After Blitzwing, Adaptive Assailant converts into Blitzwing, Cruel Tormentor, it's still an attacking creature in combat
If it doesnt, then you dont