Mono-Green Eldrazi uses powerful colorless lands like Eldrazi Temple and Ugin's Labyrinth to accelerate into massive threats like Emrakul, the Promised End and execute Fight Rigging setups. Obsidian Charmaw is our primary counterplay, landing cheaply against their colorless land base to destroy critical mana sources. Prismatic Ending provides answers to Fight Rigging and acceleration like Fanatic of Rhonas, while Wear answers Fight Rigging. High Noon restricts their turn-by-turn spell output and sequence potential. We cut Orcish Bowmasters and Goblin Bombardment because 1-damage pings fail against 1/4 dorks and giant Eldrazi, and Ragavan, Nimble Pilferer cannot push past their high-toughness blockers.

The mirror and pseudo-mirror matchups against Boros Energy revolve around managing creature tokens and energy engines. We bring in Wrath of the Skies to wipe their low-mana creature boards and enchantments efficiently while refilling our energy reserves. Prismatic Ending offers an additional targeted answer for key threats like Ajani, Nacatl Pariah and Goblin Bombardment. We board out Thoughtseize because paying life and losing tempo is detrimental against aggressive energy curves.

Affinity floods the board with cheap artifacts, leverages Urza's Saga to create massive Constructs, and finishes games with Kappa Cannoneer and Weapons Manufacturing. Wrath of the Skies is our premier sweeper, wiping out their nonland artifacts, Munitions tokens, and Constructs for low energy costs. Wear offers instant-speed removal against Urza's Saga, Weapons Manufacturing, or Mox Opal, while Prismatic Ending provides sorcery-speed removal against nonland targets like Weapons Manufacturing or Mox Opal. Clarion Conqueror locks down all activated abilities of their artifacts, while Obsidian Charmaw punishes Urza's Saga by destroying it at a reduced mana cost. We sideboard out Thoughtseize and Ragavan, Nimble Pilferer as Affinity dumps its hand too quickly for discard to matter and blocks easily.