Eldrazi Tron is largely colorless, so Consign to Memory is a premium answer that stops Kozilek's Command, Ugin, Eye of the Storms, Expedition Map, and Emrakul, the Promised End. Pithing Needle can shut down their Karn, the Great Creator activations or Expedition Map, while Tormod's Crypt disrupts little of theirs directly, and exiling our entire graveyard in response to their Kozilek's Command graveyard exile mode is only a minor interaction, though this is a lighter include. We trim slower value pieces since we need to be proactive and hold up Consign to Memory mana.