WAY too many pillars bro. You'll have much more success if you take out A LOT of them. Also, in a deck so large with proportionally not many sources of damage (22%, not including blessings), I feel like you need more draw power (i.e. hourglasses), stall techniques (dim shields, etc.) or both. I think this deck would be better if you substituted some of the blessings for other cards (or fewer of them) as well. Then again, they do protect your dragons from CC so you don't need to remove all of them, but I feel like 6 blessings running off of the mark + pillars is overkill if you cut the pillars down.
One thought. You COULD turn this into an otk deck (though it wouldn't work well for halfbloods if you did), by cutting down the pillars and adding fog shield, sundials, and sky blitz.