Containment Priest is not a good fit here, so this plan makes no swaps. Priest only exiles nontoken creatures that would enter without being cast. The Cat tokens from Ocelot Pride and Ajani, Nacatl Pariah are tokens, so they still enter and the engine keeps running. Against this deck Priest is just a 2/2 flash body, and it does not justify cutting anything from the main deck. Their game plan is cheap creatures backed by Swords to Plowshares, Static Prison and Goblin Bombardment, so keep the main-deck interaction (Swords to Plowshares, Kozilek's Command, Eldrazi Confluence, Force of Will, Force of Negation) and rely on it to answer Ocelot Pride and Ajani before they take over. Be aware that their sideboard has Null Rod, which would shut off our artifacts' activated abilities, and Pyroblast, which can counter or destroy our blue spells and permanents. Karn's static ability has little to do against a main deck with no artifacts, but Karn is still a fine source of card advantage, so it stays in.

Dimir Tempo leans on cheap plays and triggered abilities like Orcish Bowmasters, plus colorless Mishra's Bauble, so Consign to Memory is a cheap, efficient answer to those. It can counter a Bowmasters trigger or a Bauble for just {U}, and it can be replicated for extra copies if needed. The extra The One Ring gives us another resilient card-advantage engine that is indestructible and so dodges their Fatal Push, and it gives us protection from everything for a turn when cast. Thoughtseize can still take it from our hand, so it is best deployed when we can resolve it. Tormod's Crypt shrinks their graveyard-dependent threats like Nethergoyf and stops its escape, and also hampers Barrowgoyf if they bring it in. Eldrazi Confluence is a clunky four-mana instant against a deck full of cheap, efficient disruption, and Sink into Stupor's bounce trades poorly against cheap threats that are easy to recast, so both are trimmed for better interaction.

Sultai Aluren's Show and Tell and Aluren lines are built around cheap colorless setup spells like Lotus Petal plus Stock Up and Brainstorm, so Consign to Memory can strip early mana acceleration or counter colorless permanents like Lotus Petal before they're sacrificed for value. Tormod's Crypt is important since Acererak the Archlich and graveyard recursion can be slowed by proactively emptying their yard. The Echoverse Fulcrum gives us a late-game sweeper option against the huge Atraxa, Grand Unifier or token boards they can assemble via Aluren. Eldrazi Confluence and one Sink into Stupor are cut as too slow against a combo deck that can go off quickly, and one Force of Negation comes out since we have better proactive answers to bring in.