This deck is more entertaining than effective, but it has done surprisingly well in my experience.  The guiding principle here is to generate as many creature tokens as possible.  Most of the cards in the deck either spit out tokens or use the advantage of sheer numbers, like Pennon Blade, Strength of Night, or Thran Weaponry.  I've played around with a lot of the cards - the Pentavus, Trigons, and Spike Breeder are new additions to make use of proliferate cards. 

Some combo notes: use Strength of Knight or Thran Weaponry to artificially power your creatures before playing the mighty Dreadnought.  Death Match is your best friend.  Play it early and wipe out your opponent's creatures every time you play an Acorn Harvest.  I tend to play the Incubator as soon as I can get it out and dump literally all the other artifacts in my deck to power it.  It may not be the wisest move, but it usually pays off.