Mono-Green Eldrazi leans on cheap spells like Ancient Stirrings, Malevolent Rumble, Basking Broodscale, and Springleaf Drum, and Trinisphere makes each of those cost at least three mana. Urza's Saga is a land, so Trinisphere doesn't tax it. Trinisphere also taxes our own cheap spells like Amulet of Vigor and Arboreal Grazer, so sequence it carefully and lean on our lands, which it doesn't touch. Collector Ouphe stops activated abilities of artifacts, which shuts off Springleaf Drum, Talisman of Resilience, Blade of the Bloodchief's equip, Haywire Mite's sacrifice ability, and Soul-Guide Lantern. It does not stop Urza's Saga, which is an enchantment land. Summoner's Pact is risky because its delayed {2}{G}{G} upkeep payment is a liability, and the opposing Vexing Bauble can counter it when no mana is spent. Aftermath Analyst and Cultivator Colossus are cuttable since they're slow against a deck full of big blockers and removal like Dismember and Kozilek's Command. We keep every land in the deck since Amulet of Vigor and our bounce-land engine remain the core gameplan.

Rakdos Delirium is an aggressive graveyard deck with Nethergoyf, Moonshadow, and Orcish Bowmasters punishing card draw, so Dismember is efficient, cheap removal for their early threats before they stabilize behind a big Nethergoyf or Moonshadow. Vexing Bauble counters any spell cast without spending mana, which hits their Mishra's Bauble (cast for {0}) and Flare of Malice cast by sacrificing a creature instead of paying its mana cost. It does not interact with Street Wraith's cycling, since that is an activated ability and not a spell. Summoner's Pact is risky against a fast clock, since it forces a {2}{G}{G} payment on your next upkeep, and Aftermath Analyst and Cultivator Colossus are too slow against their clock. Keep the full land count since Amulet of Vigor into bounce lands remains our fastest way to close the game before their aggression overwhelms us.

Esper Control wants to grind with Day's Undoing, Jace, the Mind Sculptor, and counterspells, so Stock Up gives us card selection to find lands and threats without over-committing into Solitude or Supreme Verdict. Vexing Bauble counters any free spell they cast with no mana spent, though it does nothing against their paid spells so it's a narrow one-of. Summoner's Pact is a liability versus a deck full of free interaction (Solitude, Force of Negation) that can strand us unable to pay the follow-up cost, and Aftermath Analyst is too slow against their card advantage engines. Keep the full mana base intact since resolving Primeval Titan or Scapeshift is still our path to victory through their removal-heavy plan.