With this deck, I'm curious if I should find a way to put in two Archetype of Finality and two Caustic Tar in substitution for some of the other creatures. While they are high mana, I have won a few games because of Archetype of Finality, and I can see Caustic Tar being devastating as a closer. Or I can leave it as is. Thoughts?

I would suggest Grim Guardian . I'm trying to put it into the black white deck I've been brewing as well and it seems like it could do a lot of work with the coinsmith

Thanks for the advice Karimzamrini. I'm just not sure where to add him. It was down to Grim Guardian or Fate Unraveler for the slot, and since I have Master of the Feast and my opponent essentially has to draw every turn, I chose Fate Unraveler . I'm open to the idea because I love the card, but I just need help finding a slot for it...

I literally have the exact same problem you do haha. My build is a bit different because I have a personal hatred for Master of the Feast so I'm running Herald of Torment instead. I would probably take out the Nyx Infusion for Grim Guardian . While it's a good card, think about the amount of damage they will do in a game comparatively. It seems like in a deck like this, Grim Guardian will always do more

Haha! I thought about Herald of Torment , but paired with Fate Unraveler , I felt that Master of the Feast to be the stronger card, though the card advantage could be loathesome, so I understand.

I added two Grim Guardian to replace two Nyx Infusion . Also, how do you feel about Archetype of Finality ? I know it's a hefty mana cost, but when everything has deathtouch, one is almost unstoppable.

Again, thanks, Karimzamrini.

I changed it back. I decided since Underworld Coinsmith has a low life amount and my other creatures have low power, I should keep Nyx Infusion at a high quantity. I will play a few games once I buy all the cards and see if I want to make any substitutions (I already own Grim Guardian ), but for now, I think I like Nyx Infusion in the starting 60.

I don't like Archetype of Finality . It's a good card, but it shines in an environment where you have lots of small expendable creatures or a lot of first strike creatures to really use deathtouch ability to its full potential.

Also let me know how Eidolon of Countless Battles works for you. I've tried it in a lot of builds and it feels underwhelming. It's just a "win more" card.

If you have extra time, take a stop by my standard deck: The Boros Breakthrough and leave some feedback :)

I like your deck a lot. I've wanted something like this for a while and it seems like there's a list that will finally work (although I'm stuck on getting Grim Guardian to work)

I have my drawbacks on Eidolon of Countless Battles , too, but he does provide a nice attacker if my slow-kill enchantment strategy isn't paying off, especially since everything I have is pretty much a creature or aura.

I didn't even think of first strike/deathtouch. Whole new deck concept right there. I agree, though, on Archetype of Finality in general. It's in the skeleton of the deck I have right now, and it's done some good against newer players, but never really shines.

I really like Grim Guardian , too, so I will definitely keep him in my maybeboard, and I'll experiment a little and see what happens.

I'll head there right now.

I think that Master of the Feast is way better in a deck that wants to fill your opponents hands up like a Waste Not deck where you keep giving them cards and making them discard them. I'm interested to see if it works to just have a huge beater with a drawback in a deck with a slow - kill strategy like this

I'll keep you posted here as to how it works when I get the deck completed, which should happen by around late-September or so.

I know it's expensive, but how much would Athreos, God of Passage benefit this deck?

I put it in mine because I already have 3, but I don't think it's a staple. I've wanted to make an Athreos deck, but to use him to his full potential you need sac outlets. It's an awesome card that works well here, but it doesn't synergize like a deck using Tymaret, Murder King and Spark Trooper s etc would. If you have them, use them. If you dont, don't buy them.

Okay, thanks for the help on that. I just came across one while scrounging around to find cards, and curiosity overwhelmed me, especially since it's only a 3-mana card.

It's good no doubt. You just can't abuse it like a strategy based around his ability could

I do really like that Athreos, God of Passage basically makes all of your cards invincible, though. So long as you have the mana, you can simply replay them next turn, and in a deck like this where returned creatures give benefits, it's kind of nice. I might sideboard two of him in favor of two of Doomwake Giant , a motion that leaves me with one Giant left?

I just realized that this deck is extremely vulnerable to Back to Nature . Does anyone have suggestions on how to evade that?

Back to nature is scary but I'm running Stain the Mind to hopefully combat it. I'm not sure yet, but I feel like most green decks will be running Back to Nature only in their sideboard since they'll probably have a few mainboard Courser of Kruphix or Bow of Nylea or whatnot that they'll want to keep around.

I agree, and I think I'll run 2 Stain the Mind in the sideboard as well. That seems very effective. Thanks for the advice! :)

Hello buildingadeck I would take a plains or 2 out and add a swamp or 2 just because your mana balance may be slightly off but if it works I wouldn't touch it. Also I would get rid of the mana confluence because it seems unnecessary with your mana balance. I would instead add the Archetype of Finality or Ajani's Presence if you want more protection or deathtouch....since it's black I would go with the Archtype but it's up to you. Thats about all I would change for now. I would try it out in a few games and see what happens then go from there.

I agree with the land idea. Since I already have Mana Confluence , I think I'll keep it in for a few rounds, and if it isn't working, swap it out.

Ok, also i would add at least 1 more maybe 2 Grim Guardian they are very good due to the large amount of enchantments in the deck. I would also try and protect the Underworld Coinsmith they are good but fairly weak, I've noticed that players more experianced with constellation or Underworld Coinsmith specifically, will try and kill them very fast.

I think Aspect of Gorgon can do that effectively. I mean, I guess I could run 3 Fate Unraveler and 3 Grim Guardian , but I like the Fate Unraveler + Master of the Feast synergy, so I'm unsure.

I think you should leave the Fate Unraveler and Master of the Feast , I would also leave the Aspect of Gorgon as they can help protect the Underworld Coinsmith .

Stain the Mind agaist Back to Nature

Duress can be added in for back to nature, as well as bringing Brain Maggot to a play set. The interaction between Fate Unraveler and Master of the Feast is pretty good, but if you want to go the slower route, I would add Sphere of Safety to the deck. It helps you stall the game and allows for all of your constellation triggers to accumulate. Aspect of Gorgon synergizes really well with Nyx-Fleece Ram , especially if you can get that combo on turn 3. I think this deck could use Eidolon of Countless Battles for an alternate win condition if Athreos, God of Passage or Master of the Feast leave play. Also, Ethereal Armor works a lot better than Armament of Nyx or Nyx Infusion in terms of creature buffs.