I dont like very much Karametra, God of Harvests .Instead of you can put a couple more Brimaz, King of Oreskos or Polukranos, World Eater as removal.

I find no reason to not have cards like Burst of Strength and Kalonian Hydra . these cards quickly increase counters, which are a BIG part of your deck, and franky work better then Boon Satyr or Trostani, Selesnya's Voice . Try swapping two for two of each maybe?

I like this deck! May I suggest you trade Trostani, Selesnya's Voice for Nylea's Disciple ? It seems like it would give you life a lot quicker, is easier to cast, and you wouldn't necessarily miss out on the tokens. If you're waiting on Journey into Nyx, then check out Launch the Fleet for cheap, token goodness.

Before I say anything, I just want to say this deck is definitely what I was aiming for when building Selesnya for Journey Into Nyx!

I feel that your side-board needs more removal. There's the potential for bigger threats than what you have here, and it's never a bad idea to side if you feel you need it. I would either go to 4 Celestial Flare or add 2 Last Breath . Banisher Priest aren't a bad option either to side. I would swap out 2 Imposing Sovereign , or potentially the Fleecemane Lion

i lke the deck :D +1 to you!

wonderful job putting this together. it actualy os giving me an idea for my Boros deck. my deck is circled around Purphoros, God of the Forge and Brimaz, King of Oreskos . these to guys feel like your throwing a party in a deck. Ive realized that you run him, hes awesome! In my opinion though, I dont really like the Imposing Sovereign it gives me the control feel, and this to me, doesnt feel like a control deck. It doesnt mean you have to take it out! so dont think that. it seems pretty legitamate to run it in this deck though, becuase you dont want your creatures chump blocked. Wonderful deck and idea. If you could check out my deck, that would be awesome. I posted it a few days ago, and hasnt gotten any feedbak yet. you can look at it here Beasts, Hydras, and Primordials! Oh my! (help plz) its a mono green devotion.

Statistically speaking, running 1 of something isn't good. Even legendary stuff. If you can't justify dedicating more slots to it, then it's probably not worth having in there, and you could add a few other units of consistency.

I'm talking about Heliod, ajani, godsend, launch the fleet, war leaders helix. If some of them are marked as 1of because you don't have more, who cares just put what you intend to be the final deck.

I feel like you're splashing green just to run ajani and voice. Maybe add Ghor-Clan Rampager he's a solid on curve trampler, or he's an under costed giant growth.

Unlike the above, I think imposing sovereign will work beer, but multiples don't stack so 4 of is a bit useless. Maybe go a 3-3 split and move one over to bNisher priest.

Lastly your land, mutavault may be hard to justify, as you're not using him in any meaningful way, except for a pinger, and he may stuff up your 3 colour deck. You need coloured mana early after all.