Mono Green Landfall wants to ramp into Mossborn Hydra and Mightform Harmonizer; Duress strips their key enchantments or removal before they can set up. Ghost Vacuum exiles cards from graveyards, so it can take Esper Origins before they flash it back and can exile fetched lands that Icetill Explorer would let them replay from the graveyard. It does nothing about creatures or tokens on the battlefield. Seam Rip is weak here since most of their key threats cost 3+ mana, and Get Lost hands them two Map tokens, so we trim them for proactive hand disruption. Keep Erode in since it's efficient removal for their bigger creatures, but remember the basic land it gives them still triggers landfall, so it is not free against this deck.

Dimir Midrange leans on Kaito, Bane of Nightmares and removal/counterspells like Bitter Triumph and Spell Snare; Duress proactively strips their interaction or Kaito before it lands. Elspeth, Storm Slayer generates resilient token pressure that dodges their single-target removal suite and out-grinds their card advantage engines like Enduring Curiosity. We trim some removal since their creature count is low and most of our life-gain engine (Amalia, Lunar Convocation) is better served by proactive threats than reactive spot removal. Keep Seam Rip in the board since it only hits 2-or-less mana value targets they rarely play.

BRG is full of small aggressive creatures and sacrifice synergies (Gene Pollinator, Greedy Freebooter, Umbral Collar Zealot); Duress takes away their removal like Requiting Hex or Stir Up Trouble before it can answer our threats. Bloodthirsty Conqueror's flying deathtouch body blocks profitably against their ground creatures, and its trigger gains us life whenever an opponent loses life, which feeds our Ajani Resolute and Amalia. Seam Rip stays in because so many of their cards sit at mana value 2 or less (Gene Pollinator, Greedy Freebooter, Biotech Specialist, The Sackville-Bagginses, Obsessive Pursuit), so it has plenty of good targets; only bigger threats like Smaug need a different answer. Get Lost gets replaced by cheaper proactive disruption. Strategic Betrayal is cut because the opponent chooses which creature to exile, and with so many small bodies on their side it will usually just hit their worst creature. Keep Erode in since it answers their bigger creatures like Smaug efficiently.