This one is a lot more fun than the UB (Blue/Black or Dimir) build...a lot more fun! I could optimize it a little more but the current supply of flying creatures isn't that great. I should revisit this build with Battle for Zendikar cards.
In this game I was able to cast enchantments to boost Blessed Spirits. Green has to be very fast to beat this deck since all of my creatures have Flying.
Here is another example of how great it is when all of your creatures have Flying.
And even against red tokens, if I land enough flyers early, I win.