Awesome deck man, you have great cards here, it made me think about doing my commander, but, I don't think that the combo with Cast Through Time and Tamiyo, the Moon Sage works, because, please correct me if I'm wrong, the spells doesn't come back from the exile after the rebound works. And I also would suggest Brain Freeze it's a great milling card

Chancellor of the Spires and Diluvian Primordial might be a blast (quite literally) with all of those fully packed graveyards.

Nice suggestions ill definitely take them into consideration.

diogonb I do believe that is how Cast Through Time works , the ruling on Gatherer states "6/15/2010 If you cast a card from exile this way, it will go to your graveyard when it resolves or is countered. It won't go back to exile."

http://gatherer.wizards.com/pages/card/Details.aspx?multiverseid=198301