Dust to Dust exiles two target artifacts, letting us answer Expedition Map, Giant's Boulder, Bonder's Ornament, Barrels of Blasting Jelly, or even a resolved Maelstrom Colossus, all of which are critical to Tron's ramp and payoff plan. Hydroblast and Blue Elemental Blast only have a few targets, since Breath Weapon and Kaervek's Torch are the only red spells Tron plays and it has no red permanents, so they stay home. Cut the slower Salt Road Packbeast and the purely defensive Ornithopter for this proactive artifact disruption, since this matchup is a race against their ramp into oversized threats like Bramble Wurm and Maelstrom Colossus. Prioritize denying their mana rocks and Expedition Map early to slow down their land assembly.