Troublemaker Ouphe can be bargained using one of our many expendable artifacts (Ichor Wellspring, Map tokens, etc.) to exile Expedition Map, Giant's Boulder, Bonder's Ornament, or a Barrels of Blasting Jelly before Tron assembles, directly attacking their ramp. Red Elemental Blast has no legal targets since Tron's list is entirely colorless/green/red with no blue spells or permanents; it is being brought in here only as a mistake to avoid—do not actually include it. Instead, prioritize Duress-style disruption is not optimal either since Tron's key pieces are mostly colorless artifacts and lands, so Troublemaker Ouphe plus continued pressure from the core engine is the real plan, and the second swap should just be more Ouphes or removal. Keep the full core engine, since outracing Tron's big artifact creatures (Maelstrom Colossus, Boulderbranch Golem) with recursive threats and card advantage is the primary route to victory.