Milling is actually pretty viable in standard now. But you're going to want 4 Jaces, you want to draw one every game, and he will get targeted, so drawing 2 is better.

I would drop the Vedalken Entrancers for 2 more Undead Alchemists and 2 more Kraken Hatchlings.

Finally, I would look into either more increasing confusion, or a card called Stolen Goods.

Good luck.

Downpour would be a good sideboard against popular token based decks.Evolving Wilds would be a lot more productive than just Islands.

Yeah, I'm going to go with Ithryn's suggestions regarding the Vedalken Entrancers. Good idea.

Downpour and Sleep were both high on my list of cards to throw in, but I couldn't find room!

Would throw in more Jace's but not sure if I wanna spend the money just yet.

Maxread, how is Evolving Wilds more productive? I could draw one and look for an island or else just draw an island for the same effect. Am I missing something about EW?

Trepanation Blade in case you just GOTTA deal damage. Curse of the Bloody Tome in case your current milling isn't fast enough, or you can't expend the mana each turn for Sands. Elixir of Immortality to reset all your lost cards. Stormtide Leviathan to prevent attacks from getting through.