Basic mono-G ramp into monsters deck, with a special focus on ETB effects and an interaction between Courser and Pyxis.
EDIT: Split Primadox with Temur Sabertooth, but haven't updated the descriptions. I'm not sure if I'm gonna want to pay the 1G every turn, but I also won't want more than one Primadox out at a time.
Moved Pyxis to sideboard because my local is mostly aggro.
1 drop
Elvish Mystic - Ramp rampington yalls
Pyxis of Pandemonium - Start milling yourself early and take a few risks. Once you have Courser of Kruphix out, you can control your topdeck. If it's too early to afford your fatties, save them for later; if it's too late to need your lands or mana dorks, shrug them off and see what's next. Then if you don't have shit else to play, pay 7 and bring out the reinforcements. Even better against opposing Coursers.
2 drop
Life's Legacy - Very underrated draw card. Cast it on a Primadox if you don't have anything fun to bounce yet. Or cast it on a Twingrove token. In this deck, you're likely to draw something better than what you sacrificed and still have the mana to cast it. I might drop it for another Shamanic Revelation since I'm not sure I'll need to cast it until late anyway.
Savage Punch - Green removal is meh.
Voyaging Satyr - I was using Whisperer of the Wilds to ramp, but Satyr gives me the combo with Nykthos.
3 drop
Courser of Kruphix - Smooth the topdeck.
4 drop
Roaring Primadox - A 4/4 with some win-more abilities on the ass end. Bouncing Hornet Queen or Kalonian Twingrove will probably end in a scoop.
5 drop
Nissa, Worldwaker - Essentially 1cmc by the time she's castable. Good for that last bit of ramp, and her ultimate wins.
Shamanic Revelation - Save your ass.
6 drop
Kalonian Twingrove - Mono-G makes this a fat guy in most cases. Roaring Primadox could keep 'em coming.
7 drop
Hornet Queen - While there's not much other flying in green, this is beyond making up for it. Another good Primadox/Sabretooth endgame play. I should probably drop Twingrove for two more of these but I kinda like the flavour between Twingrove and Nissa because I'm a dork.