Tron's whole gameplan is assembling Urza's Tower/Mine/Power Plant through Expedition Map, Ancient Stirrings, and Bonder's Ornament, so Troublemaker Ouphe bargaining away a token to exile key artifacts like Expedition Map or Bonder's Ornament can meaningfully set them back a turn. Duress strips Ancient Stirrings, Crop Rotation, or Expedition Map before they find their pieces, which matters far more than racing their eventual Maelstrom Colossus or Bramble Wurm. Cast Down, Fungal Infection, and Pestilence are weak since Tron's early game has almost no creatures to kill, making removal dead cards until the late game.