nice deck - flying druidics are indeed nice healing.
a general note:
single cards are mostly not nessesary in a deck (like your fog and the dragon).
the chances that you draw it when needed is pretty low.
i usually recommend to take more then 1 copy or take them out.
e.g. for pvp:
- 1 dragon + 1 fog
for ai3:
-1 fog +2
dragons or cockatrice
Your Quanta Index is right on the mark. Its 4.7. The number your looking for is 5. So maybe add 2 cockatrice. then it would be 5.2 which is not bad. Plus it would help with some of the pesky shields.
the QI is not set in stone. the QI of 5.0 is not always optimal. some decks aim for a QI < then 5, with a better performance.
also, sometimes you need to take a look at the draw chance of the pillars.
4.7 seems good for this deck. i only spot a problem to play the dragon early.