NeonEndymion: As suspected, Primevals' Glorious Rebirth is pretty much a miss for me. If there isn't a "legendary spell" clause requirement it may be decent mid/late game but the fact that you need to ensure you have a walker/atraxa out to cast it pretty much kills it for me. It makes it too situational and will often times get stuck in your hand when you need it most.

This is far too cute to be consistent, but I'd only run Primevals' Glorious Rebirth in a very causal build, with As Foretold (pray you get it up to 7) and Morality Shift. Sure, it's Magical Christmas Land, but with a relatively full library, it'd be hilarious.

I like your idea of getting some flash action into the game, but haven't been happy so far with Alchemist's Refugetoo much of a strain on mana to leave it up every pass of the turn. I'm testing: Raff Capashen, Ship's Mage, Leyline of Anticipation, and Vedalken Orrery in a flex spot at the moment, as well as tweaking some of the manabase (mostly to try to find at least two slots for Wasteland and Dust Bowl).

I'll post a link to my iterated list later this weekend (waiting on a few singles to arrive).

NeonEndymion: The only thing I use Alchemist's Refuge to flash in for is Doubling Season at opponent's EOT to ensure that I get to play a walker and ultimate the same turn. Leyline of Anticipation sounds like a good card to test out just for that less mana intensive surprise flash factor. From playtesting, Doubling Season usually doesn't survive an entire round. Looking forward to seeing your list.

My thoughts on Dominaria added under the 'Updates' section.

Here's my starting point; I figure once this is tuned to be as competitive as it can be, I can de-tune it based on individual playgroups I'm in.

http://tappedout.net/mtg-decks/03-05-18-atraxa-and-friends/

I had been considering adding a Tabernacle/Moat/Humility package to help durdle around a bit more, but then Deepglow and Atraxa's abilities are shut down.

Maybe some lower CMC board wipes (Pernicious Deed) over Merciless Eviction might help buy some more time in this build?

NeonEndymion: List looks pretty good. What is your meta generally like? cEDH as in doomsday/blood pod/teferi stax? If so, you probably can cut Ob Nixilis of the Black Oath/Bitterblossom/some boardwipes and add more cards that help you assemble the combo more consistently. Also in a cEDH meta, you only need two boardwipes (toxic deluge and cyclonic rift) as the meta is very combo-centric and creature light and more permissions/cantrips like Brainstorm.

In a 75% meta, I think your current list of boardwipe should be sufficient. Flusterstorm/Daze/Abrupt Decay are more narrow in scope and should be cut as they don't affect the 75% meta as much in my opinion.

Our meta is in a weird space, between Lab Man/Teferi Stax/Blood Pod/Doomsday and 75%, depending on table pairings (and it can't vary within a table pairing, which is . . . awkward). Most 75% decks tend to be creature-heavy, and Markov, Ramp-into-Torment of Hailfire, The Locust God, and mono-white Goodstuff are problem decks.

I think the way to go might be to back this up closer toward where your list is, but find some room for:

-Staff of Domination-Power Artifact-Grim Monolith-Transmute Artifact-Everflowing Chalice

Maybe cutting Fellwar Stone, Gilded Lotus, and the three Signets?

NeonEndymion The problem is that without the three signets the speed of the deck will be decreased significantly. I've tried cutting them but ended up putting them back. You can cut the gilded lotus, ob nixilis, kiora, and elspeth for your additions.

May i ask your reasoning for Arcane Denial?

Arent there better counter spells?

Also have you thought about running balance with Teferis Protection? 5 CMC for basically destroy all your opponents lands, creatures and making cards in hands even sounds pretty insane for non super tryhard cEDH :D

@HighonBuffs That, my friend, is exactly why Balance is banned in EDH.

Ooh makes sense :D

HighOnBuffs: Arcane denial is my catch all for that extra card draw. Mana drain was in the list but I cut it for tef protection.

@Enral: My friend Ello took a stab at your build that splits a 75% and competitive build, and he (and I) have been pretty happy with it so far:

https://www.mtggoldfish.com/deck/1078899#paper

If you have any notes, let us know!

NeonEndymion I like it a lot, seems like the best of both worlds. The only suggestion I would give is to make space for Teferi's Protection...that card is crazy good and I often win because of that card.

Good catch; he's going to try that over Exsanguinate, especially since part of the charm here are the unique win-cons when you draw your deck. Time Spiral already gives some backup protection if they hit the yard, and you already have either Nixilis or Ugin as finishers. (Advantage to Nixilis if an opponent has hexproof.) Thanks!

Hey is there a particular reason you play Basalt over Grim Monolith or do you just not have it?

HighOnBuffs I honestly have no reason why it isn't in the deck tbh, I will have to find the space to put it in.

Yeah for sure also if you add Grim Monolith i feel like Power Artifact is just a must as maybe Academy Ruins to have a way of bringing them back if needed!

Would be interesting to see what you would take out as i feel like having more than one infinite mana combo might be integral to the deck sometimes.

Also thanks for keeping the deck updated its my favorite EDH deck of all time!

HighOnBuffs Okay...I've cut Kiora for Grim Monolith. The thing about the infinite mana combo is that if I don't have a relevant outlet (i.e. SDT) it paints a huge target on my board. Power artifact sounds great in paper, but I feel like it can be a dead draw as it only synergizes with 2 cards in the deck. Let me know if you had any success with it.

Oh yeah i added Staff of Domination as an additional outlet to draw my deck etc.

In a pinch, Power Artifact can also discount your Proteus Staff and Chain Veil, even if you're not running Staff of Domination. Not ideal, but also not entirely a dead draw, especially if it means that any 2-mana mana rock then combos with Tezzeret the Seeker and Chain Veil.

NeonEndymion: Good point about power artifact, sounds like it could be something I could test out in a more high powered meta.

Yo what do you guys think about Mox Opal (and maybe Diamond) not worth because not enough low CMC artifacts?

HighOnBuffs: I've actually tested Mox Opal and it often got stuck not producing anything till it's no longer relevant anymore. I feel like it is only worth running if I run over 30 artifacts.