Consider:
Corrupted Conviction - An extra Village Rites
* Teferi's Protection
* Read the Bones - More one-shot immediate draw
Shambling Ghast - Cheap body to sac for value
* Endrek Sahr, Master Breeder - A bunch of tokens
* Wake the Dead - A way to get a bunch of death triggers
* Living Death
Nested Shambler - Magical Christmas land with Teysa and Skullclamp for 4 cards and 6 squirrels
Tevesh Szat - Bodies, sac outlet and card draw, plus probably scary enough that he will save me some life
Reckoner's Bargain - Another Deadly Dispute type effect
Cut a land, or replace with another rock?
* Fracture - Cheap removal
Dismantling Wave
Knight of the White Orchid - Ramp that gives me a body I don't mind saccing, but WW might be tough early
Carrion Feeder - Free sac outlet
Fumigate, Wrath of God
Mimic Vat
Fanatical Devotion
Vindictive Vampire, Falkenrath Noble - More Blood Artist effects, but a bit high on the curve
Dutiful Attendant - A cheap body that gets me back a few creatures
* Darkest Hour - Combo with old Teysa
Marble Diamond
Ao, the Dawn Sky
Harvester of Souls
Retribution of the Meek
Ethereal Absolution
Martyr's Bond
Cavalier of Night
Nightmare Shepherd
Doom Foretold
Ayara, First of Locthwain
Piper of the Swarm
Forever Young
Castle Locthwain
Castle Ardenvale
Demon of Dark Schemes
Grave Titan
Blood for Bones
Whisper, Blood Liturgist
Citywide Bust
Flesh Carver
Xathrid Necromancer
Sadistic Hypnotist
Butcher of Malakir - Grave Pact on a very expensive stick
Elspeth, Sun's Champion
Marshal's Anthem
Crawling Chorus, Orzhov Enforcer, Doomed Traveler, Hunted Witness, Imperious Oligarch - Cheap dudes that die into tokens
Crush Contraband
Dread Return
Overseer of the Damned
Ophiomancer - In Scion
Razaketh, the Foulblooded
Blind Obedience
Thrilling Encore

Consider (don't have):
Rite of Oblivion - Sac outlet and removal
$$ Divine Visitation
$ Fanatical Devotion - Sac outlet and protection
$ Liesa, Forgotten Archangel
$$ Seraph of the Scales
Dramatic Finale
Blight Mound

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Considered cuts:
Mind Stone - Too much mana? Doesn't make colors, but can cycle to prevent flood
Charcoal Diamond - Too much mana? ETBT
Minstrant of Obligations - low impact?
Reliquary Monk - Not optional, so have to be careful playing this when I have stuff I want to keep on board
Dark Prophecy - Not optional, but does trigger off tokens
Midnight Reaper, Grim Haruspex - Doesn't trigger off tokens
Woe Strider - Free sac outlet that can recur itself, but at a slightly high cmc, and the goat doesn't do a lot except provide fodder
Sifter of Skulls
Requiem Angel - Good payoff, but quite expensive
Priest of Forgotten Gods - Two creatures might be too much without a lot of token generation, and this is pretty fragile

Urborg
* Scoured Barrens - ETBT
Tainted Field - Can be pretty awkward
Westvale Abbey
Vault of the Archangel - Expensive to activate

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Cuts:
Nether Traitor - I'd rather just get tokens from death triggers
Grave Pact - Two of these might be a bit excessive for casual games, and I'd rather have the instant speed Dictate
Sun Titan - Sure, it gets back lots of stuff, but it's expensive and not synergistic (only one trigger per turn at most)
Return to Dust - I probably have enough removal that I don't need this one-shot card as well
Ashen Rider - Sooo expensive! If I'm actually casting this, I'm probably winning
Skirsdag High Priest - Requires too many pieces to do anything
Ghost Quarter - Don't think I have room for this
Phyrexian Reclamation - Not sure how much spare life I have
Finale of Glory - Expensive to get real value from, and very risky at sorcery speed
* Nim Deathmantle - 4 mana is a lot to keep up, so this is mostly just used to go infinite with Ashnod's Altar and something that gives two bodies. Makes infinite mana with Ministrant, but I don't have a mana sink for the colorless mana
Martial Coup - The tokens aren't really worth it without the sweeper, and 7 mana is a lot
Burnished Hart - Triggers death, but total 6 mana to play and use is a somewhat big ask
Field of Souls - Only triggers on my nontokens, and isn't a creature itself and the tokens I get are a bit meh
Boreas Charger - I'm not sure this trigger gets doubled, and I might not have enough plains
Twilight Drover - Expensive to use
Ogre Slumlord - Doesn't trigger of tokens and the CMC is a bit high
Vindictive Lich - None of the modes are actually very impactful, even when doubled.
* Open the Graves - Doesn't trigger on tokens, and the CMC is a lot, and unlike the Slumlord, this can't be sacced
Doomed Traveler - Crappy body and even with double death trigger it's probably not worth a slot
Utter End - 4 mana is a lot, replaced with cheaper removal
? Victimize - I won't always have two creatures in the yard, but this is good value
? Cabal Coffers - I don't always have a lot of swamps, but this is sooo good when I do
Austere Command - Expensive board wipe
Orzhov Guildgate
Shambling Vent
Mentor of the Meek - I probably don't have enough things to reliably trigger this, although it does trigger off tokens. Death-based draw might be enough
Massacre Wurm - Better used in Chainer? I don't have a lot of ways to add to the -2/-2, so this only really works against really small things unless I can get it back multiple times in a turn
Regna + Krav - The "combo" is just too much mana, and neither is probably worth playing by themselves. Casting one getting the other is pretty sweet, though
Archon of Justice - 5 mana for a creature that requires a sac outlet and Teysa to even pay for itself
? Black Market - Can get insane amount of mana, but the timing makes it likely to be removed by the time it actually gets useful
? Zulaport Cutthroat - Cutting down on aristocrat effects to keep the deck different from Braids
Orzhov Locket - Replaced with a cheaper rock
Mortify - I think I have too much creature removal
Syr Konrad - 5 mana for a basic aristocrat, might cut to differentiate from Braids. Gets better with more reanimation
Commander's Sphere - Too much mana? 3-mana rocks are expensive. Replaced with Crowded Crypt
Blood Artist - Cutting down on aristocrats
Smothering Abomination - Only triggers off of sacrifice, not "regular" death, and it forces sacrifice even when I don't have fodder, plus I have to wait until my upkeep if I want to use it as an outlet