In a deck like twin, i believe that the loss of life from Thoughtseize doesnt matter too much anyway, so i would run 4 thoughtseize and no inquisition. Love the deck, +1

I will definitely test that. I've gone back and forth on the mix in the main and side, but I suspect that maining all 4 Thoughtseize might be right. What do you think about 3x Inquisition of Kozilek + 1x Keranos, God of Storms or somethin in the board? I don't plan on running Vendilion Clique (too expensive for me for now) anywhere, so my fair win conditions are a little light. I appreciate the suggestion, thanks!

After playtesting a bit, I've found that the loss of life from Thoughtseize has mattered a bit more than I thought it would. The problem isn't with Thoughtseize itself, but with how much damage I have to take upfront from my lands. If I have both Thoughtseize and Serum Visions in my opening hand, I want to fetch a Watery Grave . After that, I have to get double red as fast as possible, leading to more fetches and an occasional shock. Obviously, this isn't much of a problem for many match-ups, but it's enough that I want to go back to the split for game 1.

I'm thinking a 3:2 or 4:2 (Inquisition of Kozilek : Thoughtseize ), but that means I have to make some room :P

Oh...oh...I just realized how good Rakdos Charm is against other Twin decks...as well as any zoo deck. And affinity. And dredge. Heck, just mainboard that thing.

This gives me a great deck idea...hhehehehe.

Yeah, it's been pretty good so far. I wanted a card that would hit stuff like Cranial Plating and Spellskite. I don't want to splash into a 4th color for Ancient Grudge, and the charm is situationally useful in enough areas to warrant at least one slot. Thanks for the comment. :)

I play tested against my spirit deck if you care to know how it went. I wanna know how good my deck actually is so I tried to make the best decisions for each

I'd love to know the results! I'll do some playtests with it as well when I get a chance to see if we get similar results.

You are totally right those are somethings I will for sure implement. Here are some general things that happened

1) Cavern of Souls really protected me when you had a hand full of counters that sat there so my spirits over ran2) However in another game they did prevent me applying any of my auras and they did exactly what they were supposed to do so then I was sitting doing nothing3) Prison Term which I tutored using Tallowisp really disrupted the combo 4) Really the only thing I can suggest would be a little more damage out put since splinter twin isn't garenteed and the pestermits and deceivers are so easy to block. Unfortunately you only got splinter twins once in the three games and i put prison term onto it :(

This is probably a terrible suggestion but what about something like Dinrova Horror??

Thanks for the results. A couple things I can comment on from playtesting as well:

1) The caverns were great (naturally) against my Remands, but I can't fit Tectonic Edge into my manabase, so I'll just have to play around them when I'm up against them. Keeping a hand with more than 1 Remand is not something I can afford to do versus a deck with caverns :P.

2) Prison Term shouldn't have been able to stop Splinter Twin. Once twin resolves, I win on that turn unless something like Cryptic Command, Rakdos Charm, or Echoing Truth is played.

3) I agree that I'm light on threats for game 1. For the most part, I rely entirely on the combo until sideboarding. Keranos, God of Storms and Batterskull are going to be better threats than Dinrova Horror, since they're both fairly difficult to remove. I can't afford to have a 6-mana spell that doesn't say "I win" :)

Thanks for the playtests and comments!

Ha that's funny, I didn't play that correctly at all :P

Really nice build. +1

Much appreciated, thank you!

With Treasure Cruise being banned in modern now, you can expect a decrease in UR Delver (the reason this deck became so under played) so i think you could run all 4 Thoughtseize mainboard opposed to Inquisition of Kozilek which I don't really think deserve to be in the 75 anymore. The Tasigur, the Golden Fang looks like it would do really well, especially being that it will probably be played as a 1 or 2 of in the Junk Midrange decks. Basically everything you decide to do is a meta call but with you winning games with Ashiok, Nightmare Weaver I suspect that you have many control decks where you are which goes again with the Inquisition of Kozilek cut. Vendilion Clique and Engineered Explosives looks to be a good sideboard card for what you've got in the mainboard and are generally solid in all meta. Hope I could help

I (still) go back and forth between 4x Thoughtseize and 4x Inquisition main. I'm confident that once I become a better pilot for this deck, I'll be more comfortable cutting the inquisitions. My theory on the discard spells is simple: They are my cheaper counters. Sure sorcery speed sucks, but I get to see their hand and they can both hit Abrupt Decay.

The Ashiok, Nightmare Weavers were actually in there for zoo and pod decks (they did better vs zoo). Sounds weird and probably shouldn't work, but more often-than-not, they did. Unchecked, I get to use their creatures to fog a turn or two. Checked, it soaks up damage and fogs me for a turn or two. Oddly enough, this is typically exactly what I need when I can just win out of nowhere. They're great against control for sure, but never really necessary (If I can't stop control with 8x discard spells, I'm not doing something right).

I don't even really update the sideboard too much anymore, since I change it so frequently. Currently, I'm running an Engineered Explosives, because you're right about it being a solid card. I would love to get a clique in the list. Right now, I just can't afford one (maybe soon :P).

Theoretically (I haven't had a chance to test it yet), I love Tasigur in this deck. It's like a pseudo-Tarmogoyf that dodges the most common removal. If it performs well, I'll be trying out 4x Thoughtseize, cutting the Inquisitions, and maybe adding a couple Thought Scours.

You've given me plenty to think about, so it helped. Thanks! Sorry for the wall of text.

Yep. I think it's about time to cut down on the inquisitions. I've made several changes, including adopting (for the most part) the suggestions by TheGamer and awb422. I'll do some testing with the new list before making any additional changes.

I've made several changes, including adopting (for the most part) the suggestions by TheGamer and awb422. I'll do some testing with the new list before making any additional changes.

in most cases do you just Thought Scour yourself or your opponent?

I would make the spellkite's into +1 Snapcaster +1 Tasigur.

The Terminate i would convert to an extra Izzet Charm, since it deals better with threats like lily + you normally win by the time terminate will be better than a bolt. I would have them in sideboard if any at all.

I would also keep the seize's in sideboard.And i would rather play Clique over Ashiok.

@ Eric1827 - The Thought Scours are a new addition and haven't been tested much, but I can say that the intention is to target myself the majority of the time.

@ jchald - I could see boarding one of the Spellskites for an extra Tasigur or a Clique, but I don't like the idea of cutting them entirely. I was previously playing with 2 Izzet Charms when I could run Dig Through Times. Now that the meta should go back to more goyfs than delvers, I prefer the Terminate. There's no way I can board out the discard spells, though. Treat the discard spells as this decks version of hard counters (that can hit Abrupt Decay!) - sometimes they're for disruption, but more-often-than-not, they're just for clearing a path for twin. I'm a huge fan of Vendilion Clique, but a lot more testing will be needed before I know for sure what to cut for 1-2.

Thanks for the comments and suggestions.

No Electrolyze? It's a great tempo play.

I agree with that JexInfinite. It was on my maybe board up until like 3 days ago. It's still on my short list for consideration, too. I just don't know what (if anything) to cut for it. Maybe it's better than Izzet Charm? Or maybe it's better than the Inquisition of Kozilek? I think it's a meta-call myself, but I'm glad to hear thoughts on what it could replace.

I think it's better than Izzet Charm. I also think that a 3/2 split of Thoughtseize and Inquisition is in order.

I could honestly see running Izzet Charm, Electrolyze, or Spell Snare in that slot. I like the charm or snare better with snapcaster, but I like electrolyze better as a card. I'm gonna put it back on the maybe board for now and test it more (it's kinda hard to test 1-ofs). Maybe with the resurgence of Lingering Souls, it'll just be better.

The split of Thoughtseize to Inquisition of Kozilek has been a constant internal debate for me. I don't hate the idea of swapping a thoughtseize with the boarded inquisition one bit, but I (again) consider that to be a meta call. If you expect less Siege Rhinos - or more Burn/Zoo - where you play, it's definitely the way to go.

Good insights. I'll keep them in mind for my next tuning iteration. Thanks!

After testing, Electrolyze has proven to be as-good-or-better than Izzet Charm.

I am beginning to think that most grixis decks could benefit from a copy of Kolaghan's Command mainboard. looks super fun and playtested well