This an attempt of mine to play with my favorite color pairing (golgari) on my favorite archetype (midrange) on my favorite format (pauper).
The deck utilizes a shell similar to the G/x cascade decks people have been using (2021) but without the big cascade creatures, instead it relies on many creatures that draw a card when they enter the battlefield to net a good amount of card advantage, plus cards like Pulse of Murasa and Unearth that nets even more card advantage. The basic idea of the deck is to transform almost any exchange our opponents do into an unfavorable trade, and by getting a few trades like this, eventually we'll bury the opponent in card advantage.
Last Update: 09/19/2022
Card Choices
Take into consideration that since this is a midrange deck the card choices are exchangeable, so read your meta and make changes as necessary.
Mainboard
Creatures
Crypt Rats: Pestilence on a stick that can enter a turn earlier and can also be brought back with Pulse of Murasa or Unearth;
Fleshbag Marauder: Ever since the release of Commander Legends I've been wanting to play with this guy in one of my decks. Turns out that Fleshbag Marauder paired with graveyard recursion creates a very annoying soft lock (since I don't play hard recursion I can't call it a hard lock). I'm playing two copies to annoy people with Unearth;
Llanowar Visionary: It helps our deck by giving it more creatures to work with, it draws a card and it also ramps into our larger spells, while also making Unearth become one black mana, draw a card and get a 2/2 that can ramp. Pretty much a nice fit for the deck;
Mukotai Ambusher: A great way to reutilize ETB's from our creatures while still netting us some life against aggressive matchups;
Sarulf's Packmate: Llanowar Visionary's bigger brother, while it doesn't ramps us it can be an excellent source of card advantage, as well as providing a sizeable body on the ground;
Thorn of the Black Rose: Since we have so much board control the monarch mechanic just becomes obvious for the deck;
Avenging Hunter: A good card to generate some more card advantage due to the Undercity mechanic. Post ban (2022) this is the best initiative creature that we can use.
Vampire Sovereign: A creature with a relevant ETB, it can help us net some life against faster decks and pressure slower decks. It's not as good as Gurmag Angler but I'm willing to invest in this idea to see if recurring this with Pulse of Murasa can be as devastating as a fast Gurmag.
Artifacts
Blood Fountain: A very powerful one drop that can loot as well as grind very well.
Instants
Cast Down: Great addition from Double Masters, maybe the card I was waiting for to make the deck more viable in today's meta (2020) it's a two-mana kill anything, except for Guardian of the Guildpact. Auto-include, four-of in the deck;
Disfigure: Cheap removal that doesn't loses us life to cast, which can be useful against aggressive decks;
Pulse of Murasa: Provider of card advantage for midrange/control matchups and life gain for aggro matchups;
Snuff Out: Our mandatory copies of Snuff Out because we're playing black.
Sorceries
Chainer's Edict: Black's go-to basic removal, gets rid of anything as long as the opponent has only one creature on the board, next;
Duress: Additional copies mainboard to help us leverage some advantage against grindier matches.
Lands
Bojuka Bog: Standard grave hate tech;
Riveteers Overlook: Mana fix with the upside of gaining us life and shuffling the deck;
Witherbloom Campus: A one-of as a mana sink during late game to try and filter the deck a little bit;
Woodland Chasm: Our mana fix with the swamp type in order to activate Snuff Out.
Sideboard
Crypt Rats: Extra rats against go-wide strategies;
Faerie Macabre: With the recent bannings (2022) I believe it may be very useful to run this card here as a more versatile grave hate, especially against Boros Bully, who can't interact very well with us reanimating this card after we have used it to take out some of their grave tech. It also gains repeatable use with Pulse of Murasa;
Penumbra Spider: An amazing card for sideboard, it can eat removals for days against control decks, it can block flyers pretty well, and to top it all off casting Pulse of Murasa on it right after the opponent has dealt with the two spiders is back-breaking;
Duress: Discard spell that is extremely efficient, it helps against burn to win you three life (more or less), it helps against Bogles to reduce their speed or the power of their creatures, it protects your creatures against removal if you play it correctly. Basically, it's a general answer against anything noncreature on the hands of opponents;
Natural Obsolescence: A good answer for artifacts, since they go to the bottom of the library this surpasses indestructible as well as making Myr Enforcer unavailable for return with the fountain. It's here over Deglamer because most artifact decks don't have a way to shuffle their libraries;
Weather the Storm: Mostly here because of Burn but it also helps against aggro decks while also being useful at fueling the rat.
