This is my take on such a deck:
http://deckbox.org/sets/791753
It's a bit slow to start, but when Nemesis of Mortals comes out for 2 it starts to turn around. The Undergrowth Scavenger is pretty awesome. I have some Nyx Weavers in the mail. When they arrive I'll probably take out the Sultai Ascendancys as the Nyx Weavers will do the same thing, as well as being creatures which give value if they end up in the graveyard.