Quote from Creedmoor »My suggestions:
Instead if that mana cost, I would rock the cost. Purely for flavor, also one mana cheaper but it looks cleaner on a card.
For the "godlike" recursion ability, I would try out the new templating that WotC used for the God cycle in war of the spark. See God Eternal Bontu for reference. I think that could be a cleaner way to handle this.
Other than that, I like the ability to summon dragons from your deck. Feels perfect for such a mega-monster.
I was going for a secondary commander type ordeal. Which why you can cast her from exile.