Missing sideboard cards? The full 15-card sideboard runs about $60.75.
Buy sideboard on ManapoolOcelot Pride Midrange is a red-white aggro deck built around cheap creatures (Ocelot Pride, Guide of Souls, Amped Raptor, Voice of Victory, Thalia), Ajani, Swords to Plowshares and Static Prison. It plays no Islands, so Choke does nothing here and stays in the sideboard. Veil of Summer also stays out. It only gives hexproof from blue and black, and their removal is white (Swords to Plowshares, Static Prison) or red (Goblin Bombardment), so it protects nothing. Instead we want ways to survive the early pressure. Endurance is a flash 3/4 reach body that blocks most of their small creatures, and Dismember (castable for {1} plus 4 life) answers a key threat like Ocelot Pride or Guide of Souls. The life payment is real against a lifelink and burn-style deck, so be selective about when to cast it. Grafdigger's Cage and Expedition Map are the lowest-impact cards here. Cage does little because their Lazotep Quarry makes a token copy rather than putting a creature card onto the battlefield, and the Map is too slow against an aggressive start. Keep Pithing Needle and Ghost Quarter in: they have two Karakas, which can return Marit Lage to hand, and Needle or Ghost Quarter can shut off or destroy it. Their Wastelands still threaten Dark Depths, so protect it and be careful about when you commit it.
Dimir Tempo's primary threats are Moonshadow and Nethergoyf, which Dismember's -5/-5 can usually answer cleanly while they are still small. It is not a guaranteed answer, though: Nethergoyf's toughness is the number of card types in their graveyard plus one, and Moonshadow gets bigger each time it removes a -1/-1 counter, so either can grow past 5 toughness. Use Dismember early, before they get large. Pithing Needle and Ghost Quarter are lower priority since their deck isn't built around a single repeatable activated ability or problematic nonbasic land that outweighs having clean removal for their threats. The rest of our shell, including Wasteland and Boseiju, Who Endures, already pressures their manabase enough without additional dedicated land disruption.
Sultai Aluren relies heavily on blue mana (Show and Tell, Ponder, Brainstorm, Stock Up, Force of Will) so Choke can lock them out of casting spells once it resolves. Endurance is strong both as a free answer that can strip their graveyard (denying Life from the Loam-style recursion they don't have, but also hitting their Stock Up/Brainstorm fuel) and as a body that blocks Acererak the Archlich tokens or an early threat. Grafdigger's Cage is less impactful since their combo doesn't hinge on graveyard recursion, and Pithing Needle/Ghost Quarter/Expedition Map are the weakest cards against their explosive Show and Tell into Atraxa or Omniscience plan.