@nbarry223 You're totally right, and I understand that my sideboard may currently look like it's just the "leftovers" from my deck but actually it already sort of follows your advice. Here is the breakdown (perhaps I should add this to the deck description):

• Cloudthresher primarily against Faeries. Also helpful against spirit token decks, or anything else with small flyers.
• Creeping Corrosion against Affinity (Primal Surge gets subbed out)
• Deus of Calamity primarily against Tron decks, and control decks that run Celestial Colonnade . Could also be helpful against any tribal deck that has Mutavault . Also, it has great synergy with Primalcrux .
• Oversoul of Dusk against decks with heavy removal, including control. My mainboard creatures are very vulnerable to removal, with the kind-of exception of Wolfbriar Elemental which requires a board wipe. Oversoul could help me fight that. And of course, synergy with Primalcrux .
• Privileged Position is also against heavy removal, so I can run 3x instead of 2x. It's also important if my opponent has any sort of land destruction or enchantment destruction, or even something like Flickerwisp which could target my lands and make all the Auras fall of.
• Relic of Progenitus against Reanimator and any other graveyard shenanigans, like Dredge. Also hoses Melira Pod decks.
• Terra Stomper against control
• Torpor Orb against Splinter Twin, Kiki Pod, and Melira Pod combo decks
• Vexing Shusher against control

Does that help? What do you think?

Why don't you play Llanowar Elves or Elvish Mystic instead of Voyaging Satyr ??

@elariand Because Voyaging Satyr combos with Utopia Sprawl , Overgrowth , and Nykthos, Shrine to Nyx to make 10+ mana on turn 3. Please read the deck description. Thanks for your comment!

For one, the Chroma doesn't activate on tokens, as they have no mana cost.

I believe that you can safely remove both copies of Oversoul of Dusk for Thrun, the Last Troll . He's a lot better since he hoses control and removal, all at once.

I see why you need Deus of Calamity , can you mainboard those two copies + Cloudthresher for Wolfbriar Elemental 's spot? I realize it slightly slows the deck down, but I don't think it affects you all that much. You can also try cutting 1 each of Khalni Hydra + Elderscale Wurm + Wolfbriar Elemental (or whatever combination you'd like).

Take out Terra Stomper now, because you have 4 copies of it (essentially) when you add in 4x Thrun, the Last Troll to the side board.

That leaves you 2 spots in your sideboard for some combination of Summoning Trap and Guttural Response , unless you wanted to make some of your other responses you have sided into 1-ofs (I don't know how you fair against those match ups).

That'd give you a lot of anti-control cards in your side, and your main would be better suited against some matches just making room for the control matches sideboard.

It is probably something you should test a little before you dive in head first. I generally only keep 1 card for problem matches in my side, unless you really struggle against it, it's all up to you though.

@nbarry223 Thanks a lot for the tips. the main one I am considering is replacing Oversoul of Dusk for Thrun, the Last Troll . You make a good point that he's much better at dodging removal plus he can't be countered, but I do like that the Oversoul is also unblockable in many matchups, and that he adds 5 to Chroma / Devotion. I'll think about that. I'm reluctant to put 4x or even 3x Thrun in my sideboard because after all, he is legendary.

Mainboarding Deus of Calamity is another suggestion I will re-consider; he's been in and out of the mainboard several times already as I continue tweaking the deck.

You suggested I remove Wolfbriar Elemental and you're not the first one to do so, but honestly it is SO much stronger than it seems once you playtest. I know the tokens don't count for chroma / devotion but that doesn't bother me. This guy can help me hold on when I have 4 or 5 mana by playing defense, or be a HUGE bomb when I have 15 mana. Furthermore, he's great with helping me trigger Mosswort Bridge , and synergizes well with both Khalni Hydra and Craterhoof Behemoth . Casting a huge Wolfbriar followed by a free Hydra is an awesome play. I know he seems underwhelming on paper, and that's why I originally just had 1x in the deck, but as I playtested and saw how well he performs I upped him to 2x and eventually 3x. So unfortunately I'm very reluctant to replace him.

I might consider taking one out, and one Elderscale Wurm , for 2x Deus of Calamity mainboard, which would leave me room in my sideboard for Summoning Trap or more Vexing Shusher s. Unfortunately Elderscale Wurm is another card I'm really attached to, because I love the lockdown combo it has with Privileged Position . What would you think of adjustment?

Your T1 mechanics is wrong - you have 3 mana after casting Utopia Sprawl - 1 from Elf and 2 from untapped Forest, the 4th mana was tapped for the spell.

It sounds fine, it is your deck after all. I think that it's hard to know what's best without actually playing it. The fact that there's so many high cost creatures when I am more of a control player doesn't help.

Honestly, now that I looked at the list more, Primalcrux seems like your weakest card on the mainboard. I'd drop one of him and either a Khalni Hydra or Elderscale Wurm for the two Deus of Calamity . 4x Thrun, the Last Troll might seem like a lot, but you really want to draw him in your opening hand. He completely hoses any and all removal. If you do draw a second copy, it might be a dead card, but how often are you out of cards, honestly? If worst comes to worst, you can always swing with him and cast the second copy to block with, due to the new legendary rule.

Do what you want though, I think you understand what needs to be done now, your response seemed very logical to me.

@DannyG

It goes like this, on turn 2...

after dropping the second forest, you have 2 forests and an arbor elf on the field. You tap one forest to enchant the other. That forest now produces two mana. You tap the forest that produces two twice (arbor elf) for 4.

Any questions?

I should probably explain why I view Primalcrux as not as vital of a card...

It is one of the only cards that is on the mainboard that really relies on other cards to be a major threat. Everything else has a good effect or a lower cost. Probably cut 1 of Primalcrux / Khalni Hydra since they are the two that strongly rely on your other cards (which makes them weaker in control matches too) for the 2x Deus of Calamity mainboard. Yes, they can stomp face if they aren't accounted for, but if your opponent isn't disrupting you, there shouldn't really be a problem.

Ok I took out 1x Khalni Hydra and 1x Elderscale Wurm for 2x Deus of Calamity . I used the extra two sideboard spots for 1x Elderscale Wurm (against any fast aggro like RDW, Boros, or Gruul) and one more Vexing Shusher . I do like Thrun, the Last Troll but in the end it didn't seem like I had enough of a change to make a mutable sideboard, and the tie-breaker in the decision of whether or not to include him was the fact that he's kind of an expensive card and I'm building on a budget. But he'll be on my mind as I continue to playtest.

Thanks for all your help!

Sorry, i've read your description but i didn't understand it, for the 4manas turn 2 especially =)

Now it's ok and i approve your choice ! =P

So you decided to keep Oversoul of Dusk over Thrun, the Last Troll due to budget issues?

@nbarry223You have two forests and elf, tap one for mana to cast Utopia Sprawl , you are left with 1 untapped, enchanted forsest and 1 elf with 0 free mana (1 was used for cast). You can tap the remaining forest for 2 mana and elf for additional 1 = 3 mana. I ask again, where is the 4th?

1/ Tap a forest to cast Utopia Sprawl on the other.

2/ Add 2manas to your mana pool thanks to the enchanted forest, and then tap the Arbor Elf to untap this forest to add 2 other manas...

So a total of 4manas turn 2 ! (It took me a long time to understand it, too xP )

Yea, there is nothing about casting Utopia Sprawl in T1, that's the place where mistake can be found.

T1, Forest, cast Arbor Elf . T2, Forest, Utopia Sprawl on the other land, 4 mana. What's so difficult about that?

I guess I have to label the forests so you can understand this...

Turn 1, you play forest A, tap it to play arbor elf, pass the turn.

Turn 2, you play forest B, tap forest A to enchant forest B. Tap forest B for 2 mana, tap arbor elf to untap forest B, then tap forest B again for another 2 mana, making a grand total of FOUR mana.

If you still don't understand just give up, because you never will.

lol I'm glad everybody understands now. I will try to make it more clear in my deck description, which will hopefully help you understand DannyG.

@nbarry223 - I decided to keep Oversoul of Dusk over Thrun, the Last Troll for two reasons. One is budget. The second is that Oversoul of Dusk is unblockable against many decks, making him a much more viable win con. But the choice isn't final, when I'm playtesting Oversoul of Dusk I will be thinking about if I'd rather have Thrun.

Did you ever consider Vorapede ? It's resistant to removal and can serve as a blocker after swinging if needed. I'm not sure if both of those would be needed against any problem decks though. Just thought I'd ask since the card made me think of this deck.

I feel really stupid not suggesting this card earlier...I thought it wasn't modern legal until I looked it up for a different deck...Leyline of Lifeforce

Pretty sure that's worthy of at least 2 spots in your sideboard...

nbarry223 Making an effort to recommend everything I did (:

@arthurxisde haha yeah, it's because I cleaned up the comments, which I'll probably have to do again pretty soon. Thanks so much to the two of you for helping me make this deck better!

I love it.

@Phishcake thank you so much! Don't forget to +1 :)

Just wondering, what will happen if you Primal Surge your complete library? When you cast it with both of your surges in your hand for example? Do you immediately lose the game? Or does the last repeat just get fizzled, wich leaves you with 1 turn to win?

Ether way not recommended ofcourse because a simple Fog , or Holy Day wil lose you the game... :)