Dimir Midrange leans on Kaito, Bane of Nightmares and Enduring Curiosity as resilient card-advantage engines backed by countermagic like We Say Thee Nay! and Spell Snare, so proactive disruption outperforms reactive removal. Duress strips Requiting Hex, We Say Thee Nay!, or Strategic Betrayal before they can be used, clearing the way for your threats. Strategic Betrayal makes them exile a creature of their choice rather than one you pick, so it is an edict and not a clean answer to Enduring Curiosity. It cannot touch Kaito on your turn, since he is only a creature during his controller's turn and Strategic Betrayal is a sorcery. It also exiles their graveyard, which shrinks the count Yuriko relies on. Deadly Precision's additional cost is a real tax in a matchup where you want to keep your resources, and Callous Inspector is a 1/1 that can trade with their 2/1s but does little against their 4/3s.