Well I envy you. Here you are trying to acquire a single Blackcleave Cliffs while I am in the process of obtaining a playset of Underground Sea. On top of having just obtained a playset of Force of Will.

In other news it looks like a pretty nice build. I think I've seen a lot of similar builds around probably stemming from the same source as yours. I love grixis for its control but not much for its competitive creatures. I play legacy reanimator so my creatures are on the opposite end of the spectrum from yours haha.

Yes, in legacy reanimator you do get quite a few more toys to play with. Good luck with your legacy staples! I wish I could get into legacy, but it's just so expensive. And yes, looking for budget replacements for Cliffs is a little silly, but it is pretty hard to come by as far as modern cards are concerned.

Most grixis decks running around are either Control or Delver, both of which became popular almost exclusively because of Kolaghan's Command. Bloody Singleminded, the origin of this deck, has been in the works since long before Kommand was printed, although it was a nice addition to the list. A lot the grixis decklists look very similar - and there really isn't a ton of variance in the card choices, but the choices made change the style of play significantly. Even if this deck shares roughly 70% of the cards with a delver deck, the style of play and the matchups are drastically different because the 18 cards that are different make all the difference.

It's a really fun deck to play!

Snaps arrived and Twin is banned. More discussion on this is in my most recent update.

Kalitas has turned out to be exactly what this deck needs. Great against most of the field right now. I'm quite pleased with its performance.

With the rise of Infect and Affinity, Darkblast seems like a good removal spell to give yourself access to.

Ooh... I'll definitely have to think about that. Being able to draw it every turn means I'll always have access to it when I need removal. Milling me every turn means I can hit Bloodghast really easily, if I mill Faithless Looting then I can flash it back and get access to more cards from my deck while still dredging Darkblast every turn. It also makes casting Tasigur a lot easier. The only concern I have is that affinity is already a good matchup because of my high removal count, so I'm not sure I need it, and I don't know what other decks I'd use it against. It'd be good against infect, but that's also a good matchup already. Most other decks are too big for it. I'll definitely have to test it though, because it's a card I have never considered for this deck. Thanks!

It's also decent against Bx eldrazi to ping off those tokens, and therefore also good against BW tokens.

As an Eldrazi player, Darkblast would be a terrible removal spell against me. Doesn't do much againt 5/8s, and my scions don't matter enough.

The point of dark blast isn't to remove your big creatures. Terminate, gft, and rise/fall already cover that. The point of dark blast in that match up would he specifically to ping off tokens and free up those other removal spells to be used exclusively on the eldrazi.

Someday, just once, I want to play Kalitas, Traitor of Ghet against BW tokens, then cast Pyroclasm or Engineered Explosives the next turn to get, like, 6 or possibly even more zombie tokens. I know it's not a huge play, but it still sounds hilarious.

I'd like to play Darkblast, especially because I can discard it to Faithless Looting and still gain value, but it doesn't help any of my bad matchups and only improves my good ones at the moment because of how much spot removal I already pack, all of which is more versatile or powerful. It definitely can't be mainboarded, and I want to use my sideboard spots on bad matchups more than my good ones.

Sorry to ruin your dream, but Kalitas, Traitor of Ghet specifically says non-token.

Yeah.... I missed that part. Oh well. Pyroclasming their board is plenty of fun as it is, so I'll get by. Thanks!

I don't think the custom categories are helping. Use those for a combo deck where the categories actually mean something, not here where your cards are relatively normal and the categorization does nothing to aid in understanding the deck.

I'm concerned that you are playing one-ofs just to have one-ofs. Why do you have 1 Thoughtseize and 3 Inquisition of Kozilek? Why 1 Kalitas in the main and 1 in the board instead of both in the board and 3 Tasigur main? Why 1 Dispel and 1 Remand instead of 2 of either or 2 Mana Leak? There are benefits to having a streamlined deck containing only maximally efficient cards and less random tech. If you've got really good reasons, that's fine.

Some SB cards seem all over the place. I don't think you need Rakdos Charm anymore since Twin is gone, as more Kommand is better for Affinity and Nihil Spellbomb would be a better choice against graveyard decks. I still don't like Echoing Truth because I don't know what permanents matter that can't be dealt with otherwise. That probably means you don't need it, but I'm not sure.

You seem to be a little heavy on sweepers postboard, you don't need four. Just 2 of Pyroclasm, EE and Anger should do you fine. Languish seems very stupid when only 1 of your creatures survives it. Might as well play the cheaper sweeper, especially when not much has exactly 4 toughness.

I don't know why you randomly have 1 Spreading Seas. Again, it may be better to just have a more streamlined deck with more consistent card choices. Similarly, I don't know what 1 Mana Leak in the board is doing.

It may be worthwhile to concede a bad matchup to have more SB space. Tron currently has 3 of your slots, so it could be better to switch them out for more versatile cards or stop trying entirely.

I'm going to have to think about that for awhile. I think you're correct with most of that. Thanks, glistener!

Okay, I've thought through some of it. The 1-of Thoughtseize has strong reasons, and was actually TheAlexGnan's idea. Burn is a bad matchup, so we can't run all Thoughtseize, but with the rise of Eldrazi and possibly Tron, Thoughtseize is gaining a lot of value in the deck. The reason for a 1-of is because I need enough painless hand disruption to combat burn, so I can't safely run 2. Thoughtseize is a card where the first copy is significantly better than the second copy, whereas with Inquisition of Kozilek, the second copy is still pretty good because of the lack of life loss.

My counterspells are a little haphazard. There aren't any counterspells I've fallen in love with other than Countersquall, which I don't think should be in the mainboard. Spell Snare doesn't hit the things I care about most and Spell Pierce loses value pretty quickly in a deck that plays a longer game. Dispel is a super dead card against decks like Tron or Hatebears, but amazing against the interactive decks. Remand has so much utility as well as tempo building that I think it should be in the deck. I have not been running any more than 1 because it's a stall, rather than an answer, and I guess I just don't have room. For some reason, I recall that 2 Remand wasn't very good in TheAlexGnan's version, and I haven't tried it since because it's not quite what the deck is trying to do all the time. Running a 2 mana hard counter is too inefficient and I've never really been a fan of Mana Leak, like, ever. This deck currently uses counters not as a primary way to answer cards, but rather as a way to answer the cards that don't die to removal.

As for the Spreading Seas, that was probably just running a 1-of for the sake of a 1-of. I think you're right that I'm much better off with 3 Crumble to Dust instead of running a less streamlined card that I won't need. Languish was nice when Merfolk was more popular, but even then it probably didn't belong. I've dropped it, and am considering what to replace it with.

I like having access to graveyard hate with Rakdos Charm to use against Living End, Grishoalbrand, and similar graveyard decks without having to run dedicated grave hate, but affinity is a good enough matchup that I don't need Rakdos Charm anymore. Nihil Spellbomb cantrips, meaning I don't lose card advantage playing it against BGx, any deck with Snapcaster Mage, any deck with Tarmogoyf, and Living End. My only concern is that BGx, Snap decks, and Goyf decks tend to be good matchups where I don't particularly need the grave hate, making me wonder if it's actually a good use of a sideboard spot or not. If I should run it, how many? Probably 2? Are there other matchups I've forgotten about that I should be siding it in for?

I'm still thinking through the Kalitas / Tasigur split. I definitely don't want 3 Tasigur. At times, even 2 feels like too many, but I know better than to drop any lower than 2. Delver can get away with 3 Tasigur because of Gitaxian Probe and the fact that they simply play more cards than I do every turn. I'm also still thinking through the sideboard. What kind of cards do you think I should be running in the sideboard instead of my current mess?

Thanks!

I actually think it's time for Echoing Truth to become a Far+Away. With the death of twin AND amulet bloom, Far can take care of most of the threats that echoing truth did beforehand.
Rakdos Charm can become Grafdigger's Cage to help against Kiki chord, living end, griselhoard, and gifts. I don't know if those need all that much help but... It's a thought.
If you are dropping languish just grab another Kommand to 2 for 1 people, or another Rise/Fall for the same reason.
One Kalitas and two tasigurs is a fine split.
I get the impression you don't like other fast decks. Maybe add to the sideboard a one of "insert legendary 2BB enchantment that gives all creatures -1/-1 here" (sorry forgot the name). Ghast won't like it but he can always just pop back up when the enchantment is removed... Or not if it just wins the match-up.

Those are my 2 cents.

Also before someone says ghast and cage are a non-bo, the point of using cage would be that it just wins the match-up, and ghast can be boarded out for more removal. Or you could just Kommand your own cage, play a land for the turn, and get all the ghasts back.

NONONONONONO. DON'T BRIG IN Grafdigger's Cage AGAINST Living End. VERY BAD. DON'T DO.

Yeah I'm not a fan of Cage. Especially because it does nothing against Living End. I think I'm missing something, but does Cage do anything that Nihil Spellbomb can't? I guess I don't have to worry about the timing of casting it, but I like Ghast too much to turn my back on him.

Night of Souls' Betrayal hurts me more than it helps. I think I'll be fine on 2 Pyroclasm and 1 EE for sweepers.

I ran Far / Away for a long time, but it never actually did anything for me, so I cut it. I like Echoing Truth because it hits enchantments, which no other card in my deck can do, save hand disruption. Echoing Truth is a pretty strong tempo play against some decks, while a much-needed silver bullet against enchantments and great against tokens. Leyline of Sanctity and Leyline of the Void in particular are rough for me as far as enchantments go, and hitting both Wurmcoil Engine tokens or a Lingering Souls team has won be the game before.

Grafdigger's Cage turns off flashback, Collected Company, Chord of Calling, Through the Breach, Goryo's Vengeance, etc. It doesnt hit everything, but it is useful

How exactly does cage shut off breach?

@Sk0oMa It doesn't, I just got on a roll of naming cards and slipped in the wrong one. Let's pretend I said Genesis Wave or fetching for a Dryad Arbor

Lol just don't let it happen again ;P

If needing to hit enchantments is a thing... What about Cyclonic Rift?

I'll never overload it because it's just too much mana, it's the same mana cost, I can't use it to bounce my own Vampire Nighthawk to dodge removal, and hitting tokens is very relevant. I was skeptical of Echoing Truth for a long time, until I played it. I have never doubted it since. It is the best at what it does, and it does exactly what I need for a 1-of sideboard card.

Okay... So from what I understand, decks like affinity, infect, jund, and junk are all pretty good match ups. I'm guessing that bad match ups which you don't have that much hate for in the sideboard would include lantern control, gifts control decks, token strategies which includes elves and Merfolk, and... Probably Kiki chord.
For the most part, it doesn't seem like you struggle that much with graveyard based decks, unless they are combo based, so maybe if dredgevine and griselhoard see an increase the spellbomb would be good but to me it just feels like its in here to be in here. This is the card I will be offering replacements for.
For lantern, something like Damping Matrix could help. It also helps against Bx eldrazi and tron (sort of).
Slaughter Games also seems good. It can handle te newlamoggs in both eldrazi match ups, can take care of lords in the creature flood match ups, can get rid of all copies of Chord of Calling for Kiki chord and Gifts Ungiven against gifts control to shut down the consistency of both decks, and is just generically good against any up and coming rogue combo brews.
That's all I have for now. I'll keep digging and see if anything else jumps out at me.