Need help

[rarehuntertay]

I have 4 slots left open for my R/G monsters, and I have no idea what to add in. Currently at:

4 {Elvish Mystic}
3 {Sylvan Carytid}
1 {Scavenging Ooze}
4 {Voyaging Satyr}
4 {Burning-Tree Emissary}
4 {Polukranos, World Eater}
3 {Arbor Colossus}

3 {Clan Defiance}

3 {Xenagos, the Reveler}
4 {Domri Rade}

4 {Nykthos, Shrine to Nyx}
4 {Stomping Ground}
4 {Temple of Abandon}
Various Forests and Mountains

The deck is self explainatory. Generate lots of mana for a huge activations of Polukranos or Clan Defiance, then rush the opponent. I just don't know what to fill in the final 4 slots. Budget is no concern here. Thanks.

[Agrus Kos, Enforcer of Truth]

Have you considered {Garruk, Caller of Beasts}? Maybe add it as a one-of or two-of.

[Prplprince]

If you are generating mass amounts o mana I would think about {Worldspine Wurm} because their aren't to many bigger then that. Also  {Skarrg Goliath} because your mana output could use that blood rush

[Trugamr12]

{Arbor Colossus} he is a hoss and deals with pesky Demons and Specters. And with your mana generation monstrous will happen

[Caininite]

I like {Garruk, Caller of Beasts} and {Borborygmos Enraged} to get rid of any extra land you probably won't need to play.