MTG Salvation

Good games. Except that was a very novice opponent. Like blocking the flanker with a 1/1 in game 2. Took way too much damage from your 1 drop game 1 also.
Do you have wins against good opponents or wins against tier decks that doesn't involve turn 1 Vail? Not being disrespectful or saying it doesn't happen. Just saying that showing wins against a 5 year old doesn't impress. You know what I mean.

Still this deck looks like it will be too slow. Probably need to add in seer and vampire lacerator to the mix. A few Thoughtseizes can help with the Inquisitions to throw opponents off their game.

Would be cool. Especially if they had some kind of on color theme. Like the black one makes each player discard a card when it goes the grave. Blue could loot you. Red could make a 1/1 goblin. Even though that's kinda been done with a land from kamagua block. Green one could give you 2 life. For instance.

I'd start by cutting all the 2 drop 1/1s that get counters for stuff dying. Yes, I know they can be great in this magical Christmas land and I'm sure you probably have stories of them doing well. But don't forget the many more games where they were slow and you lost because they produce no real board presence.
With that said most newer players, or non-competitive players, don't play enough lands. I'd put in 3 fetchlsnds. That gives you 5 slots. 3 Liliana, of the Vail gives you 2 slots left. I'd suggest those slots being Noturinous... Or whatever the spelling is.

Take out those bad duel lands for 4 mutavault. They are pretty much required in this kind of deck.
Swap 1 mountain for Urborg. You need black much more than red with the highborn and swap another mountain for a swamp.

I hope that helps.

Exile lands? Oh I was talking about the new printing not the old one. Sorry about that yeah the old ones tight.

I just saw a Jim Davis video where he played against a SoC deck. He died turn 3 game 1 and turn 2 game 2. I can reverse engineer the deck if you like. Was on the Modern Naya Winota YouTube video. Ended at the 52 minute mark. Deck looked sweet.

Basically I saw
I'd be willing to bet there was a backup win con of grapeshot but it was never shown.
The combination of pact and Cantor was straight up brutal. Draw 4 and costs 0 Mana. Use that to dig for a SSG to produce Mana. He/she also played explosives on 0 and repealed it draw 7. The ultimate Ancestral! Deck may contain some Remand, but they were not seen. Possibly SB option in some matchups?
I know it's the all in strategy that you spoke of earlier, but just reporting my findings.

That's not what I'm saying at all. I'm saying to make the deck that works best with the card. Don't dilute existing decks. I don't think the half burn half ramp is the way to go. You do have some good parts of the deck. Just needs to be focused.

Mangara is bad in anything except maybe standard. We'll have to see. And of course commander. That's kinda what it was made for.
Priest is a good SB card for decks with evolution, Coco, and it shuts down the gristlebrand decks if you survive to turn 2. If you can run the deck with no vials then I'd strongly suggest a straight swap maindeck, but from watching the videos you put up it looks like you need them. But some main deck hate cards would be nice.

Seems like a decent enough starting point.
I was actually considering a good cheap artifact creature to put in here, or an enchantment creature to play with Brutality. Maybe in the SB.
Was thinking about against a combo deck how backbreaking T1 Thoughtseize, T2 Brutality pitching 1 T3 Whispers would be. If you followed that up with any decent clock it would be game over.

Seems broken. I have not looked back at Whispers in a very long time. Great find. I'd say this could go in a Rock shell pretty easily. Other artifact would be Nihil Spellbomb. Obviously to fight other Lurrus decks. While also getting splatter damage against Storm, Dredge, and Breech decks.
That easily gives you Sorcery, Land, Instant, and creature with a little bit of artifact.
Sorcery - IoK, Thoughtseize, Pulse, Whispers, SB Brutality
Instant - Decay, Trophy, Push
Land - Fetch, Peatland
Creature - Goyf, Bob, Ooze, Flayer
Artifact - Bauble, Spellbomb.
Companion - Lurrus.
Build it!

So your suggestion is to make a deck that is half burn and half SSG, Explore, Edge of Autumn all the while talking about tunnel vision being bad? Interesting. I'll stick to winning deck building instead of diluting existing deck types just for the sake of being "innovative".
I'm not being rude, but if you look at the format you see decks that are streamlined and focused. Decks that are attempting to do too many things at once don't typically do well.
Let's say you are facing against an aggressive deck and you draw half burn and have ramp. What are you odds of wining said match. Let's say you go against counter control deck and draw half burn and half ramp. What are your odds?
You recommend playing regular storm first. I recommend playing regular burn first.

Wouldn't you want a ritual package to help generate Mana while drawing cards?

Pretty close to how I would build it today. Definitely on with the Companion plan also.
Immediate differences I would play right now is Manamorphose is too critical in making this deck work.
Turn 2 play morphose then Erayo and a few 0 drops.
Likewise you kinda need 4 mox. The above reason is pretty much the cause of that. Turn 2 morphose, Erayo, mox, then you get to have access to playing any 1 Mana blue spell to finish the set.
Depending on your meta Meddling Mage looks like it is needed. The random Decay can wipe all your hard work out.
I'm toying with the thought of playing Wall of Roots in here also as burn is a huge part of the meta. It blocks really really well while can also make Mana. It can make one to cast an important spell on your turn then also make Mana for your Time of need on the opponent's turn.
Mentioning time of need I don't know if your Mana base could support it but isn't Eldrami's Call just better? Right now with the current configuration Time may be better, but if you drop a few whatever's and add in wall then times where you want to grab that or thopter may make call better.

Only change I can think to make that would be an immediate upgrade would be to put Resto in place of the 4 drop Champions. I know it doesn't work well with moth. But the evasion is better than making 2 dudes that just get blocked, and the blinking is better than crying. Flash is an added plus that shouldn't be ignored.

Looking through these lists I didn't find an Abzan Death's Shadow list which I thought was a little weird. Abzan has some of the strongest stand alone cards and while you can put them together they are individually powerful. So why not just go ahead and take those powerful cards and put in a really fast clock? I give you ADS.