Null Rod shuts off Bilbo's card advantage engine and Mishra's Bauble cantrips, disrupting their tempo plan significantly while not costing us anything since we don't rely on activated artifact abilities. Blood Moon is weak here since their manabase leans heavily on Underground Sea and basics-adjacent duals, so it rarely blanks more than a couple lands. Disruptor Flute can be named on Force of Will or Thoughtseize to tax their key disruption. Keep Chalice of the Void in as it fights Brainstorm, Ponder, and Thoughtseize at the 1 setting.

Fiery Confluence can wipe their token swarm of 1/1 and 2/1 Cats with the 1-damage-to-each-creature mode chosen multiple times, which is excellent against Ocelot Pride's go-wide plan. Pithing Needle cannot stop Ocelot Pride's token generation since that ability is triggered, not activated; instead, name Wasteland to protect our lands or shut down Ajani's activated loyalty abilities. Blood Moon is only middling since much of their manabase is basics and Plateau/Sunbaked Canyon, so we trim one copy. Sundering Eruption is a low-impact land destruction spell against a deck that isn't mana hungry, so it comes out.

Null Rod shuts off Lotus Petal's mana ability, cutting into their fast mana for Show and Tell into Omniscience or Atraxa, Grand Unifier. Blood Moon is inconsistent since their manabase includes Tropical Island and enough basics/fetches to dodge it, so we trim to 3 copies. Sundering Eruption isn't impactful against a combo-oriented deck that isn't trying to grind on lands, so it comes out. Chalice of the Void set to 0 or 1 is very strong against their glut of cheap cantrips (Ponder, Brainstorm) and free spells (Lotus Petal), and Magus of the Moon punishes their many nonbasic lands.