Grafted exoskeleton seems nice, but unless you have mana acceleration, which you don't, you wont be equipping it until the 5th turn, and by then you could have already killed them with faster cards, for example buff cards. Overall, the deck looks fairly good; however, you won't win with it until maybe the 6th or 7th turn. If you do want to make this blue/black I would suggest using some Plague Stingers, since you only have 4 black cards in the entire deck.
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The only problem I see is with the airborne aid card. It seems unnecessarily expensive at 4 mana, when you could just as easily get cards for less mana.