Mono-Green Eldrazi ramps hard off nonbasic lands like Eldrazi Temple and Ugin's Labyrinth into big threats, so Boseiju, Who Endures disrupts their manabase directly and can also hit problematic permanents. Vexing Bauble stops any free-cast interaction they might bring in and is generally low-cost insurance against their ramp plan. Burning Inquiry is risky since it can discard your Arclight Phoenixes or Creeping Chill into a graveyard right before their Kozilek's Return or other sweeper-adjacent effects punish you, and Golgari Thug's dredge is too slow against a deck that can also ramp into Emrakul, the Promised End. Keep the core burn and dredge shell to race before they stabilize with big Eldrazi threats.