You have a Green/White and a Green/Black deck. My gut likes the Green/Black deck better, but that might just be my natural bias.
Green: Oran-Rief Invoker, Snapping Gnarlid, 2x Netcaster Spider, Tajuru Stalwart, Saddleback Lagac, Embodiment of Insight, 2x Nissa's Judgment, Tajuru Pathwarden, World Breaker (11 cards)
Black: Grasp of Darkness, Complete Disregard, Tar Snare, Vampire Envoy, Mire's Malice, Null Caller, Oblivion Strike, Demon's Grasp (8 cards)
Splash Dragonmaster Outcast. Play Seer's Lantern for a little bit of ramp and better topdecks when the game inevitably goes long. That's 21 cards.
I assume this deck wants to play 18 lands, so you need one more playable. I think you might go hard on the splash and play either Touch of the Void or Radiant Flames. Or you could play Canopy Gorger for a piece of beef.
You have options when sideboarding to lower or raise your curve, which is really nice.
I would also build the GW deck and have it saved to your playable decks to be able to switch in game two if you think that the matchup requires you to be proactive. Or, if you're just more comfortable with GW, start there and be able to side back into GB if you need to slow the pace of the game down.
I like your pool. It has a lot of play to it.