Null Rod does not shut off Urza's Saga's Construct ability for us since Saga is an enchantment land, but more importantly neutralizes nothing of theirs directly, though it is mostly brought in as a hedge against artifact-based mana denial decks; here its real value is minimal, so weigh it against keeping Chalice in for tempo disruption against their cheap spells like Ponder and Brainstorm. Chalice of the Void is effective against their one-mana cantrips and Thoughtseize, and setting it at one does not shut off our own Chrome Mox or Simian Spirit Guide, though against free spells like Force of Will and Daze and their higher-cost threats it can be awkward, so trim some copies. Pithing Needle can name Wasteland to protect our nonbasic-heavy manabase, though it cannot affect Murktide Regent since Murktide has no activated abilities. Keep Magus of the Moon and Blood Moon in as premium disruption against their nonbasic-heavy manabase full of fetches and duals, since that effect punishes them far more than it punishes our own Mountain-based deck. Fury remains excellent against Tamiyo, though it cannot cleanly answer Murktide Regent, so the core plan is a light adjustment rather than a full overhaul.

Ocelot Pride Midrange floods the board with 1/1 and 2/1 Cat tokens, making Fiery Confluence's mode dealing 1 damage to each creature (which can be chosen multiple times) extremely valuable to reset the token swarm. Pithing Needle can lock down Ajani, Nacatl Pariah's activated abilities or a problematic Karakas. Sundering Eruption is weak here since the opponent runs many basics (Snow-Covered Plains/Mountain) that blunt the land destruction, and Lavaspur Boots does little against a deck full of removal and token chump blockers. Keep Chalice of the Void at 1 to strand Swords to Plowshares and cheap creatures, and Blood Moon is strong against their sprawling nonbasic-heavy manabase.

WU is a control-tempo deck built around Force of Will, Daze, and Stifle protecting Tamiyo and Phelia, with Wasteland as their only real land disruption and no artifacts to punish with Null Rod. Our best plan is simply to keep the mainboard's proactive, hard-to-interact-with threats and Chalice of the Void, which is excellent against their one-mana cantrip suite (Brainstorm, Ponder) and Stifle. Blood Moon and Magus of the Moon cripple their Tundra/dual-heavy, fetchland-reliant manabase, often stranding their colored spells. Since none of our sideboard cards (Null Rod, Leyline of the Void, Fiery Confluence, Disruptor Flute, Pithing Needle, Shadowspear) clearly outperform mainboard cards against this matchup's lack of graveyard or artifact synergies, we hold the board as-is and lean on raw speed and land destruction.