Fatal Push is largely dead against Eldrazi Tron's giant colorless threats like Devourer of Destiny and Ulamog, the Ceaseless Hunger, so trim it in favor of Wrath of the Skies, which can sweep Talisman of Resilience, Giant's Boulder, and other low-mana-value artifacts/permanents for a reasonable energy payment. Mystical Dispute is a cheap way to interact with anything blue they might bring in, and more broadly serves as generic countermagic for the full cost against their big spells. Prismatic Ending struggles to hit Karn or Ugin cheaply given limited color convergence, so it comes out. Keep Thoughtseize to strip their Karn, the Great Creator or Ugin, Eye of the Storms before they resolve, and keep Orcish Bowmasters and Solitude as efficient interaction against their slower draw-go game plan.