You'll notice there are no Pestermites or Cloud of Faeries. They always proved very disappointing in testing. They have been replaced with maindeck Glen Elendra Archmage.
I wonder how you efficiently play Glen Elendra Archmage without the acceleration provided by Cloud of Faeries. I also wonder why the maindeck Control Magic over Sower of Temptation (it's a beater if opp doesn't play any dude).

Prophetic Prism is just another Elsewhere Flask, eventually could be better but you need 2 lands + City of Traitors/Ancient Tomb to cast 2UU, and you could do just the same with Elsewhere Flask, so I don't think it's even worth considering (and God knows FS doesn't want to run the 8 of them)