First of all, I believe this deck is already being discussed in this thread:
http://www.themanadrain.com/forums/viewtopic.php?t=17560But let's get just pretend that thread doesn't exist.
I have tested a deck like this one too and came to the conclusion it's not very good.
First of all, the deck works exactly the same as the aluren deck: have a recurring creature and a way to get it into play for free.
However, the aluren deck doesn't stop when null rod hits play and this deck does.
Of course you have disciple of the vault and more recurring in the form of second sunrise, but I don't believe that is enough. The deck has a chance of comboing in turn three I guess: but by then, a null rod could be played, the opponent has enough for a mana drain _and_ a swords to plowshares and so on.
Don't get me wrong, I like the deck but it just won't be very good in this form.