Grixis Mill

Yeah but I think he is a bit to weak sadly :( If he gets blocked he does nothing and for him to be worth it he needs to connect twice which is hard to do.
Consuming Aberration is just much scarier to block and mills "for free".

True. He does have flying, but thats too easy to circumvent. How has breaking and entering been working for you?

Breaking is doing very good work, especially since it allows a turn 4 win with only 2 Phantasms, 2 lands and a single Thought Scour.
Entering is a bit more experimental, early on I use the other half, so I often end up not having it in hand when I could need it. However it has its uses against junk reanimator, who doesn't like an Angel of Serenity in Grixis colors :P

Ive thought about building with it, but using grixis as opposed to dimir seems a little weak in the current meta game. I could always spend some cash and make a good modern deck though...but if I was doing that why not simply use things like Glimpse the Unthinkable...

Here's hoping for some nice mill cards in M14, a new Mind Funeral and a 3cmc creature that adds to the Phantasm and Wight (1/1 Hexproof, gets +1/+1 until eot when land cards are put into an opponent's graveyard would be nice).
Or maybe there is something like a god of memory in Theros and his followers are experts in milling :D

That be pretty sweet...but they brought back slivers...bleh!

Hmm just read in another deck of Hidden Strings with the Phantasm.
T1 Phantasm
T2 Hidden Strings, untap both lands, cast Breaking, attack, untap the lands, cast another Breaking.
It also opens up the blockers so a big Aberration could waddle to victory.
But what should I take out :S