You have a good deck there, but I feel as if your deck is weak to CC (this means Creature Control, right? Sorry, n00b here
). Against a good CC deck, you'll pretty much loose. As for your shield card, I prefer Wings over Fog Shield every time. It is such an underrated card, but I love it. The only problems I have with Wings are Momentum effects, Dragon Cards, and Air decks. However, with a good CC deck, you could minimize these problems. I suggest adding some Shockwave or Owl's Eyes cards. But wait, there is MORE! I would get rid of Blitz. I hate that card with a passion. It's such a quanta drainer. I'd get rid of those cards and replace them with creatures and/or CC cards. That's just me though.