Eldrazi Tron's whole gameplan depends on Urza's Tron lands, Eldrazi Temple, and Ugin's Labyrinth producing multiple mana off a single land, making Damping Sphere devastating — it caps every Tron piece at one mana while our own single Mountains are unaffected. Soul-Guide Lantern strips value from Devourer of Destiny's exile-based card advantage engine and can proactively exile their graveyard. Eidolon of the Great Revel is weak here since Tron's spells are almost entirely 4+ mana (Karn, Ugin, Emrakul, Kozilek's Command), so it rarely triggers, and we're cutting Shard Volley since we need every land to fight through their lock pieces like Trinisphere. This matchup is a race against their mana assembling — apply maximum pressure before Tron comes fully online.