I can see where you're going, and really like the idea. I would consider adding some cards, like some more Eternal Witness , which is an awsome card. Also, Sun Titan is a very good card for you. Llanowar Augur can also bring something good to the table, specially if you have some way to get it back. Cathedral Sanctifier is very good for life winning. Thragtusk and Trostani's Summoner are good finishers.

Cloudshift can be very good, since you will be bouncing your creatures, triggering their effects, as well as Conjurer's Closet .

Brago, King Eternal is also sweet. Evolution Charm is good to get some lands you are missing, or to return some dead creature back to the game.

Hope I gave some help. I really liked your deck, so +1.

Thanks so much for the suggestions I will test all of them, do you think Momentary Blink is as good/better than Cloudshift and I really liked the idea of gaining some life back so at our five drop slot do you think we could go for Archangel of Thune and maybe a Spike Feeder in a 3 slot?

Momentay Blink can be a good card because of flashback, but that one more mana can bring some troubles, but then again, it's better you test it out. I don't think Archangel of Thune would fit well in this deck, is too expensive and wouldn't bring much to the table. As for Spike Feeder , it could work, but probably not in the best way. I believe Cathedral Sanctifier is better than him. That Spike makes a good combo with Forgotten Ancient , but I believe he is not modern legal.

The reason for Archangel of Thune instead of Thragtusk is so that we can go infinite with Spike Feeder because its another win condition

Yes, I tought about that, but you're relying on 2 cards for that combo, and to your deck I don't think thats the best way, however that is just my opinion and maybe I'm wrong