Ocelot Pride Midrange goes wide fast with Cat tokens off Ocelot Pride and Ajani, Nacatl Pariah, so the extra copy of Toxic Deluge is key to sweep their token board since the mainboard copy is often not enough against their repeated token generation. Surgical Extraction can strip every copy of Ocelot Pride or Ajani from hand, graveyard, and library to cut off their core engine pieces, though it needs one of those cards already in a graveyard to target. Unlicensed Hearse exiles creature cards from their graveyard, which blunts Lazotep Quarry's reanimation, and it can grow into a blocker once crewed. It can't exile tokens such as the Warrior tokens from Voice of Victory, since tokens cease to exist in the graveyard. Snuff Out stays in because many of their key threats like Ocelot Pride and Guide of Souls are white, not black, so it kills them cleanly, and it can be cast for free when pressured. Thoughtseize is cut because paying 2 life is costly against their proactive, lifelinking aggression, and Drown in the Loch and Stock Up are too slow and card-disadvantageous in the same spot. Force of Negation is less valuable since their deck is creature-heavy rather than relying on key noncreature spells.

This is a mirror-ish grindy matchup where free countermagic and cheap threats dominate. Consign to Memory comes in as a narrow but cheap answer. It counters a triggered ability or a colorless spell, so it hits Orcish Bowmasters triggers, Bilbo's attack trigger, Moonshadow's trigger, and their colorless Mishra's Bauble, and after sideboarding it also answers Nihil Spellbomb and Null Rod. It costs only {U}, and replicate lets you copy it for more. It can't counter their colored spells, so don't expect it to stop Fatal Push, Daze, Force of Will or Kaito. Barrowgoyf comes out because its size depends on the card types in all graveyards, and the graveyard hate coming in (Dauthi Voidwalker, Surgical Extraction) works against that. The clunkier Stock Up and the conditional Drown in the Loch also come out, since their graveyard stays low early. Surgical Extraction can exile every copy of Nethergoyf or Moonshadow from their graveyard, hand and library, which denies their best threats. Dauthi Voidwalker has shadow, so their creatures can't block it, and it exiles cards that would go to their graveyard, which starves Nethergoyf and its escape. Toxic Deluge gets cut because its life payment is costly against a tempo deck that pressures you with cheap threats and fetchland damage.

Sultai Aluren wants to resolve Show and Tell into Omniscience or cheat Atraxa, Grand Unifier into play, so single-target removal like Fatal Push and Snuff Out (and even Drown in the Loch, which checks graveyard size for its modes) is often too narrow or too slow against a 7/7 or a free-casting engine. Snuff Out can't target black creatures at all, which rules out Atraxa and Acererak the Archlich. Trimming those slots makes room for graveyard disruption and a fast clock. Surgical Extraction strips copies of Aluren or Show and Tell out of their graveyard, hand and library once one hits their graveyard, disrupting their most consistent lines. Dauthi Voidwalker is an evasive clock that their creatures can't block, and it exiles cards heading to their graveyard, denying them any graveyard value. Unlicensed Hearse adds another way to proactively strip their graveyard (relevant as their cantrips and Show and Tell land there) while growing into a real threat. Keep Orcish Bowmasters, Thoughtseize, Force of Will, and the core draw/disruption package intact since disrupting Show and Tell/Aluren and punishing their card draw remains the primary win condition.