Mono-Green Eldrazi wants to ramp into giant threats like Emrakul or Ulamog, so racing before they hit critical mass is essential, but Consign to Memory can counter their colorless spells and triggered abilities — such as Sowing Mycospawn or Eldrazi cast triggers — to keep their ramp and board presence in check. Surgical Extraction is much better, stripping their top-end threats (Emrakul, Ulamog, Ugin) from the graveyard after a Malevolent Rumble mills them, eliminating all remaining copies from their hand and library. Mutagenic Growth and Violent Urge are cut in favor of proactive disruption, since this matchup is about denying their ramp payoffs while racing on the ground. Mulligan aggressively for fast, low-curve hands.

This matchup is a pure race against a ramp deck aiming to cast Emrakul or assemble Devourer of Destiny/Basking Broodscale value, so speed is paramount, but Meltdown can blow up their Urza's Saga constructs or Vexing Baubles for a low X cost. Surgical Extraction is useful against their one-of threats like Emrakul or key colorless payoffs once they hit the graveyard, and can strip Ancient Stirrings/Malevolent Rumble hits before they resolve again. The bulk of the low-curve burn and creatures stay in since racing them before they hit 6-7 lands worth of ramp is the primary win condition. Prioritize mulliganing to fast starts over grindy plans.

This is a mirror-adjacent matchup where cheap, efficient interaction on their Dragon's Rage Channeler and Monastery Swiftspear matters more than pump spells that don't affect the race. Unholy Heat kills anything they play for one mana and hits for 6 once delirium is on, which is trivial in this deck. Surgical Extraction can strip a key Lava Dart or Expressive Iteration copy after they resolve one, disrupting their consistency. Mutagenic Growth and Violent Urge are cut since they're combat tricks that don't answer their clock, and this matchup is about who removes threats first, not who wins combat math.