TheBear

I would need more information on what this is for, if it's for Commander or Norm 60 card decks, without those I wouldn't know what to recommend to you.

You could play one or two Dakmor Salvage, as lands you can just dredge back after discarding or sacrificing them.

For the main board, I agree that deaths hold and night of souls' betrayal are good, but 7 of the effect at that much mana seems difficult, I would cut 4 and actually play a playset of Smallpox, removal, disruption and land destruction.

For your sideboard, play stuff like Ratchet Bomb to deal with misc artifacts and enchantments, Collective Brutality is cheap right now and a very good sb card in Modern. Pithing Needle is another good option.

The one thing I can think of trying is trying to maximize destroying your opponents tempo, cards like Shadow Of Doubt, Trickbind, Boomerang, just to obliterate anyone trying to play Fetches.

I would also recommend some more win conditions, only 4 Thing In The Ice and 3 Cliques just feels too light, I would recommend maybe 4 Snapcaster Mages instead of Spellskites.

Other then that maybe up your land count to 21 or 22, otherwise Cryptic can be a bit difficult to cast.

It's pretty absurd against a number of decks, Infect, Affinity and against other midrange match ups. It's only a 1x so I haven't had a ton of chances to try it as of yet.

I've been playing Engineered Explosives and Bitterblossom as cards to fuel Delirium and large Goyfs in my Jund list.

With Flayer and Tarmogoyf, I don't think you need to play Prototype, it may seem powerful but sometimes you do want to just hold removal. To fill in those slots I would play some Maelstrom Pulse, just a very versatile spell and is probably your best answer to Lingering Souls in the main. You probably would want to play a Mishra's Bauble (Or some other easy to put into graveyard artifact to help with Delirium, it may not be required if you have Tarfire+Seal Of Fire already though)

Another threat that I've seen in these Delirium base Jund lists has been Bedlam Reveler as a two-of, could be worth trying to keep up on your threat count.

If anything I would cut the Hedron Crawlers for +2 of both Thought-Knot and Smasher, just much higher impact cards.

Looks solid, I think the only changes I would do is make the Fiery Impulses in the main into Grasp Of Darkness or Ultimate Price, seems a bit more effective, and take out a Pilgrim's Eye for another Tracker, but these might just be my personal preferance.

I feel like you should max out on Smashers, and also play a set of Matter Reshapers, the card seems too good and protects Nahiri well. If you want to stay R/W, I would cut the Lingering Souls for just more interactions, Lightning Helix possibly. Otherwise you really want a Black Source so you can flash it back, but that would definetely require Duels and Fetches to be efficient.

For the actual deck, have you thought of trying out Collective Brutalities in the MB, I've been trying them out and enjoying them more then Shriekhown, just much higher impact.

I'm even trying out Collective Defiance for the fact it kills Scavenging Ooze and Kalitas, while also having a Wheel of Fortune effect to cause a massive dredge chain.

Grave-Troll is legal in Modern, this website is horrible at keeping track of legalities and bannings. Here is the proof.

http://magic.wizards.com/en/articles/archive/feature/banned-and-restricted-announcement-2015-01-19

And the arguement of Moeba and Amalgam, they are much better then Vengevine, it's much less clunky and just by dredging you are naturally building a board state without the need to casting any creatures. I would rather just Dredge a ton, get free creatures then have to jump through hoops to cast two creatures to get a payoff that may not even be as powerful.

I like playing a more Proactive style in general, Walls just didn't do it enough for me, currently on Brimaz and Kalitas for additional threats that also work very well on defense.

But that is probably just personal preference.

I highly recommend the 24th Land, I'm running the same deck and you can get starved for mana even with the Night's Whispers.

The list looks solid, I would probably cut the basic Mountain for a Blood Crypt, it'll probably be your worse Shock Land, but you'll want it in corner cases.
I would also only play 2 Windswepts and maybe 2 other Black Fetches. (Probably Delta, if you want to keep out of the Zendikar Fetches)

You can probably go down to 1 Plains also, and maybe make it a third Windswept instead.

The sideboard seems alright to me, not a huge fan of the Damnation, could just be another Zealous Persecution.

I think it's wrong to go less then 4 Explorers, it's the best way for you to ramp, in nearly every game you want it in your hand.

I feel like you're missing out on alot of the more powerful interactions with your creature choices.

Courser of Kruphix is extremely good when paired with Sensei's Divining Top.

The Grave Titan and Liliana, Heritical Healer just feel out of place in this style of Nic Fit, without cards like Birthing Pod to find them and Green Sun's Zenith only getting Green creatures, it just feels like they could be better options. (Courser of Kruphix, Thragtusk, another Deathrite Shaman, Etc)

I don't think you need Kolaghan's Command if you have Recurring Nightmare, could just be a third Liliana of the Veil.

Sideboard looks good, but I think you could afford to play some form of Land Disruption, it'll be useful against Miracles and Lands which have been tough match ups. And with Eldrazi becoming more prominent in the format, it'll be a nice addition for the match up.

Believe it or not, I have already posted on your BG Loam list, about a year ago.

Planned ahead perfectly.

If you do go with Scourge, I would increase the number of Descent Into Madness, as it would slowly turn into a lock. But trying to resolve a 5 cmc Enchantment may be tough, green for ramp might be the answer there.

Stuff you could trim to fit him in I think would be Asylum Visitor, Raven's Crime (Would be good if you had Loam, and even then it would probably only need to be a 1x), Consuming Vapors seems a bit expensive for the effect.

Some additions to this that I can think of would be Bloodghast as a threat, if you want to keep going with Descent Of Madness, one card I think worth considering would be Eternal Scourge, as it would be very effective way to gain value out of the exile clause. Tough part would be to get him from Graveyard to Exile, perhaps stuff along the lines of Bojuka Bog or Relics Of Progenitus.

Other then that I think the only logical option would be to go into Green and try to build the list similar to the G/B Death Cloud lists, using ramp cards like Search For Tomorrow and Sakura Tribe-Elder as ways to ramp into massive Death Clouds to just cripple people, while leaving you with some lands and creatures (Preferably "Sticky" ones, Bloodghasts, Kitchen Finks, Thragtusk, etc) The former two creatures feel extremely disgusting when recurred with Grim Harvest.