REMOVE-

Personally, I would add a full set of Undead Alchemists to the deck as they get nuts in mill.  I would probably lose Frightful Delusion because it's not helping much and Mindcrank because, well, it's not a good card.  I guess they are good if you have out two or more but, in general, you're going to kill your opponent through damage before you kill them with Mindcrank mill. 

I also think you can cut at least 1, if not 2 Increasing Confusions.  You don't want to see these until you have plenty of land out and with the flashback you really don't need 8 effects that do the same thing.  Jace's Erasure is also not very good. 

There isn't a lot left to pick from in mono-blue, standard mill but a few Geralf's Mindcrushers could be good.  If it were me, I would go U/B, add Forbidden alchemy, run lots of creature removal and maybe even Skinrender since it's removal, a zombie and a solid blocker.