This deck needs more win conditions. Expecting to have (and keep)
Jace's Erasure on the board is not a solid plan to victory. The
fog aspect is a good way to prevent dying, but you need more reliable ways to go through your opponents library.
Mind funeral (need to add black to the deck),
archive trap and
hedron crab are pretty solid in mill decks. If you're adding black, though, there are a wealth of things to add beyond what I listed.
Also, you might want to consider at least one
surgical extraction, since that is mills usual way to deal with a rogue eldrazi titan that finds its way to the graveyard (and you don't HAVE to run black to run it.)