Mono-Green Eldrazi ramps hard via Eldrazi Temple and Ugin's Labyrinth into huge threats like Emrakul, Ulamog, and Ugin, Eye of the Storms, so speed and disruption matter more than incremental value; Claim the Firstborn can steal an early Fanatic of Rhonas or Disciple of Freyalise mana creature to slow their ramp and add pressure. Cool but Rude provides a fast, resilient clock to close the game before their top-end threats land. Vexing Bauble has limited targets here since their spells cost mana, but still catches any free effects. Ox of Agonas is cut as too slow against a deck that can otherwise bury us with card advantage and huge bodies.

Boros Energy is an efficient go-wide aggro deck built around Ragavan, Ocelot Pride, and Guide of Souls generating value and tokens; Surgical Extraction can proactively remove a copy of a key card like Ajani, Nacatl Pariah once it hits the graveyard or is revealed, denying redundancy. Claim the Firstborn steals an early Ragavan or Voice of Victory token generator to swing the race in our favor. Cool but Rude helps us out-race their aggressive clock with steady incremental damage. Ox of Agonas and one Nethergoyf are cut as too slow against a deck this proactive, where every turn matters.

Affinity relies heavily on free and zero-cost artifacts like Mishra's Bauble and Mox Opal; Vexing Bauble counters those uncast-for-mana plays outright and can also shut down Urza's Saga's free-ish token creation timing since it triggers off casting spells with no mana spent, making it a strong tempo disruptor here. Claim the Firstborn can steal a cheap Pinnacle Emissary or Kappa Cannoneer before it grows out of hand. Cool but Rude helps close games quickly against a deck that can otherwise stabilize with Weapons Manufacturing value. Ox of Agonas is cut for being too slow and card-disadvantageous against their fast, low-curve gameplan.