I've never been much of a B/G player but I cracked a pack and got {Garruk, Apex Predator} and pulled {Varolz, the Scar-Striped} from a draft shortly after.
Currently the deck is ramp from {Arbor Elf} and {Voyaging Satyr} with {Verdant Haven} and {Market Festival} plus {Nissa's Venture} ({4}{G} convoke, search library for two basic land cards and put them onto the battlefield tapped).
Removal comes from {Doomblade} and {Necrobite}. One of the debates is throwing in {Hunt the Weak}. I'm hoping to upgrade to {Abrupt Decay} and {Putrefy}.
After that it's just kinda whatever creatures I had laying around. I'd like help for synergy/combo with {Varolz, the Scar-Striped}. The other thought was {Korozda Gorgon} + undying. In which case B/G sac outlets would be cool.
{Nylea's Bow} and {Garruk, Apex Predator}'s emblem kick serious butt. I also have {Nylea, God of the Hunt} (foil!) for that deathtouch trample combo.
So far the buy list is {Bow of Nylea}, {Putrefy} and {Abrupt Decay}.