Mono-Green Eldrazi relies heavily on Urza's Saga and cheap artifacts to find Blade of the Bloodchief-style pieces and ramp into Emrakul/Devourer, so Force of Vigor is excellent, destroying up to two artifacts/enchantments at instant speed (hitting Urza's Saga tokens' source, Vexing Bauble, Soul-Guide Lantern, or Springleaf Drum) and can even be cast for free by exiling a green card. Endurance's enters-the-battlefield ability can shuffle away a graveyard reliant on Malevolent Rumble/Ancient Stirrings synergy and its evoke lets you cast it for free in a pinch; its body also blocks well. Masked Vandal adds another answer to artifacts by exiling a creature from your graveyard. We already have Boseiju, Who Endures as a maindeck answer to their lands/artifacts, so we lean further into that plan and trim the weakest small bodies.