This matchup is a race, so prioritize cheap interaction that stops their damage engine rather than card advantage. The extra Thraben Charm copies deal damage equal to twice your creature count, which reliably kills Voldaren Epicure, Kessig Flamebreather, and Guttersnipe before they generate value, and can also exile their graveyard to blunt Faithless Looting flashback and Lava Dart flashback. Arms of Hadar wipes their early board with -2/-2, killing Voldaren Epicure and Guttersnipe in one sweep, which is huge against their go-wide plan. Cut the slower value pieces like Grim Bauble, Eviscerator's Insight, and Omen of the Dead since you need to be proactive and can't afford to trade cards for tempo in a race you're trying to win with life total pressure and board control.

Duress is excellent here because it strips Counterspell before you commit your aggressive creatures, letting your Glint Hawk and Kor Skyfisher resolve safely. Grim Bauble's -2/-2 doesn't reliably kill their key threats once Tolarian Terror or Cryptic Serpent are online, so trim a couple copies for proactive hand disruption instead. Keep your removal spells like Cast Down and Thraben Charm since Tolarian Terror and Cryptic Serpent still need to be answered once they resolve. Play around Ward 2 on Tolarian Terror by holding extra mana when trying to remove it.

Tron has almost no creatures worth Cast Down early (their threats like Bramble Wurm, Maelstrom Colossus, and Pinnacle Kill-Ship come down turn 4+ after ramping), so trimming a copy for proactive disruption is worth it. Duress strips their key noncreature spells like Ancient Stirrings, Cleansing Wildfire, or Expedition Map before they assemble Urza's Tower, Urza's Power Plant, and Urza's Mine, denying them the mana to cast their finishers. Since your clock is fast, use Duress on the turns you don't have a creature to deploy to keep pace with their ramp. Keep the rest of your removal suite intact since Bramble Wurm and the cascade creatures still need answers once they land.