Eldrazi Tron's game plan runs through artifacts and colorless spells (Expedition Map, Talisman of Resilience, Trinisphere, Karn, Ugin). Meltdown can blow up several of their cheap artifacts at once, though Trinisphere needs X=3, and Karn is a planeswalker so it won't be hit. Consign to Memory counters their colorless spells (Karn, Ugin, Trinisphere, Ulamog) as well as cast triggers like Devourer of Destiny's and Ulamog's exile triggers. It can't counter a colored spell such as Dismember. Quantum Riddler is too slow here, and Sink into Stupor's tempo play doesn't permanently answer their lock pieces, so they come out. Sink into Stupor is a single copy that also doubles as a land, so cutting it costs one land-capable slot. Keep Thoughtseize to strip Karn or Ugin before they lock the game. Fatal Push has limited targets: Devourer of Destiny (mana value 7) and Ulamog are out of range, and Devourer's exile trigger happens on cast anyway. Push is best on Sowing Mycospawn once revolt is on (crack a fetchland first) or on an animated cheap artifact. Watch for their Cursed Totem and Chalice of the Void, which can shut down our creature abilities (Psychic Frog, Emperor of Bones) and cheap spells respectively.