Tron is a control mirror that assembles Urza lands to cast overcosted spells like Mulldrifter, Ghostly Flicker, and Mystical Teachings that generate massive card advantage and lock you out with Stonehorn Dignitary loops. Steel Sabotage is your best post-board tool for disrupting their engine at instant speed, since Tron leans heavily on artifacts like Bonder's Ornament, Expedition Map, Candy Trail, Relic of Progenitus, Barrels of Blasting Jelly, Boulderbranch Golem, and Pinnacle Kill-Ship — Steel Sabotage can counter any of these on the stack or bounce one already in play. Lightning Bolt and the two Skreds come out because Tron has minimal creatures early and your removal sits dead until they deploy Mulldrifter or Stonehorn Dignitary, which are better answered by counterspells. The game plan is to contest every key spell on the stack and advance your own Ephemerate-Mulldrifter value engine to outlast theirs.