I have been getting killed lately by Grixis. Even with Rest In Peace in play, they just seem to be able to wipe the board then never let a spell resolve.
Anything else to try or is this just a bad matchup vs SS?

a.stebel I think it's more a question of play style, sequencing, and smart plays. You may want to experiment with a black splash, though. Lingering Souls is great. I don't recommend it in general, but it might be alright against Grixis control, even though I don't see that as a bad matchup.

Is the one sideboard copy of Leyline of Sanctity worth it? I cant imagine that you really care about the burn matchup because of the inherent game plan of the archetype, and everything is so redundant, targeted discard seems irrelevant.

PlattBonnay Definitely not necessary, but it's better than anything else I have at the moment. It can sometimes be relevant against Burn, as it blanks Skullcrack, and can definitely slow them down. Relevant against Scapeshift decks, which are picking up in popularity again.

I feel like an extra Suppression Field would be better. Gives you another way to turn off the Twin combo, completely kills fetchlands, stops ravager from being terrifying, and it slows down manlands which, with the new ones being printed, might become more relevant.

you have Windbrisk Heights in there 8 times.

horatio13 It's only 4 copies, just in multiple categories.

i know that, it fits in both categories but if you count up all of your cards excluding the duplicates in your mainboard you will get 56.

never mind that lol, you're good.

I play against a ton of counter magic in my local meta. What are your thoughts on cavern of souls? With only the pridemate and the angel of thune being the non humans, it seems like it may be helpful.

Keeshe Yeah, generally you want 1-2 Caverns in blue heavy metas. If most decks are blue, you could run the full 4, but that's usually a bad idea with Spectral Procession. If you have no blue in the meta, then a basic Plains is just better. It casts all your spells, and has no drawbacks.

Hey there! I'm not an expert and I haven't been playing mtg for very long but I still want to try and help out. I have only been playing soul sisters for a little over a week but I have spent hours watching videos and looking at deck lists to try and make the most optimal and budget friendly build. Right now on my profile I have 2 soul sister builds that I think are pretty good, one is a budget deck and the other is what I believe the most optimal build. Here's the budget version, and I highly recommend reading the description because it goes into detail on why I chose certain things. Here's the more optimal build.

To be honest I like what you did with everything except the land base. To me it looks like you're trying to do too many things but for no good reason. I highly highly recommend cutting every land that is not flagstone, ghost quarter, windbrisk, and of course regular plains. In my soul sisters deck I run 4 of each of the lands mentioned above except for plains which I run 8 of. And if I'm allowed to nitpick I feel like archangel isn't really integral to the strategy and is fine as a 1 of. I also feel like token generation in this deck is too good to not run 4 secure the wastes. I'm still figuring out the sideboard for mine so I can't really help you there. Sorry if I sound condescending, but those are just my two cents.

Also if you're interested I made a playlist of videos I used to help me make my soul sister decks, so here it is. I also watched Gathering Magic's games of soul sisters to get a feel for the deck, so I'll link that here too. I hope I helped!

Oh and as a sidenote on what I said about your land base in the previous comment, sometimes it's better to sacrifice variety for consistency and reliability.

thisizshane424 The reason my mana base looks so peculiar is because of Tron and Amulet Bloom. Tron is a solidly tier 1 deck, and impossible to beat without a good sideboard. In the past, people have run Stony Silence, but that only slows down Tron, rather than killing it. Gaddock Teeg kills Tron, hurts Amulet Bloom, locks out Scapeshift (and BTL), as well as being a good creature on its own. The Tron matchup is so atrocious that you either have to concede it entirely, or oversideboard in mono white.

You'll notice that the green splash is specifically for the sideboard, meaning you can use basic plains for G1, not hurting yourself at all (fetches are negligible). Another green sideboard card is Choke, which locks out blue decks incredibly well, and seeing as how there's a lot of blue going around, it's more safety for us. Merfolk is also a 50/50 matchup, not particularly favourable due to their new tools, and Choke does very well against them, especially if they don't expect it.

Dromoka's Command is great against any BGx strategy, and can help us deal with Night of Souls' Betrayal, Ghostly Prison, and Ghirapur AEther Grid from affinity. It's good removal, and buffs our dudes.

Archangel is pretty important in the strategy. She's not a 4x, obviously, but we'll see her often enough when we need to for her to have a serious impact on the game, and randomly steal wins from underneath a Windbrisk Heights. She's a killer against midrange because she gets us so much value, even when she dies immediately.

Back on the manabase, GQs are absolutely necessary, but the colourless mana is very restrictive a lot of the time, hence only 3 are run. Since we have Gaddocks in the sideboard, GQ is slightly less relevant. Fetches are run so that we'll likely play our Gaddock or Choke the turn we need it; any later and we could just lose. Since Flagstones can fetch up a Temple Garden and Canopy Vista, fetches aren't the most important, but enough so that we will have good mana when we need it. In G1, we can just fetch basic plains, but G2 is more likely when they matter.

I also don't do budget, since I find it to be suboptimal magic, and poor practice for good deckbuilding.

I like the green splash. Nice build idea for lands.

landstalker10 Yeah, it's nice to finally have a deck where battle lands work. I think if you go for green mainboard, you just add another Vista. You could also end up splashing for for god knows what (with Prairie Stream). It might be an idea, though, so I'd definitely not rule it out without assessing all that a blue splash could bring.

The only blue add I think would be Leonin Relic-Warder + Phyrexian Metamorph combo. But you dont need blue for it. And I think adding would break your combos.

I been running Endless Horizons. Just one though. Early game it can ramp me, but that is not the purpose. I put one in to fix my draw, drawing out all my land. Its better than splashing some sort of card draw.

landstalker10 That's quite an interesting card. On one hand, it costs 4 and doesn't immediately impact the board, but on the other, it improves draws considerably (especially in mono) and ensures you always have a land. It seems decent in grindy matchups, though that's the only place I can think off where it'll be useful. Not good against any aggressive deck, and not good tapping out on T4 against Twin.

Cool, that's kind of what I was thinking. And it has made it main board in my deck. I haven't regretted drawing it at anytime. Oh, and it applies to shock lands and the new umm IDK what you call the new lands.

+100 :)

If you're splashing green switch Auriok Champion for Essence Warden

Openvortex Absolutely not. Essence Warden requires G to cast, and in a deck with a green splash, this is impossible to consistently cast. I need to always be able to cast a T1 sister, and Essence Warden does not fill that criteria. Auriok Champion also has pro red and pro black, which are very relevant against Grixis, Jund, and Burn. Champion is actually easier to cast than Essence Warden, since we're more likely to have green mana around T4-5.