Really nice deck. I like the mana source distribution of it. I'd get rid of one
Dragonmaster Outcast and replace it with a
Wild Nacatl. I would also get rid of
Ajani Vengeant and replace it with another
Where Ancients Tread as that can be a very potent win condition. I would also replace
Mayael's Aria with another Wooly Thoctar as those are excellent 3 drops since you don't have creatures with thoughness past 5. But very nice overall. +1