This matchup is a race against landfall value engines like Earthbender Ascension and Mightform Harmonizer, so Pinnacle Starcage stays in to strip Llanowar Elves and cheap threats. Authority of the Consuls slows down their creature deployment by making their creatures enter tapped, buying crucial tempo. The extra Tezzeret, Cruel Captain adds another proactive threat to grind through their go-wide plan, while Ghost Vacuum offers incidental graveyard disruption against Mole Man, Moloid Master's land recursion. Cut narrow or slow artifacts like Spring-Loaded Sawblades and card selection pieces that don't affect the board quickly enough.

Dimir Midrange is grindy with countermagic like Spell Pierce and Spell Snare plus removal like Bitter Triumph and Requiting Hex, so we want resilient, mana-efficient threats. Page, Loose Leaf gives us cheap artifact bodies that provide long-game card advantage via Grandeur, though watch for Requiting Hex. The extra Tezzeret, Cruel Captain is a strong grindy planeswalker against their removal-heavy shell. Ghost Vacuum lets us exile cards from graveyards and potentially reanimate opposing creatures later. Cut narrow anti-aggro tools like Lodestone Needle and Dusk Rose Reliquary that are weaker against a deck without cheap creature swarms.

Dimir Excruciator is a control-combo deck with sweepers like Deadly Cover-Up and Day of Black Sun plus discard from Duress, so our anti-aggro cards like Lodestone Needle and Dusk Rose Reliquary come out for cards that are resilient and generate ongoing value. Page, Loose Leaf provides cheap bodies that rebuild well after a sweeper and dig for action via Grandeur. The extra Tezzeret, Cruel Captain is a strong grinding threat that survives their removal-light, sweeper-heavy plan. Watch out for Doomsday Excruciator's library exile effect changing the long game, but our proactive artifact plan should out-pace their card disadvantage from Duress and discard.