This is a mirror-adjacent matchup against another Eldrazi ramp deck, so the player who disrupts the opponent's engine pieces while protecting their own path to Emrakul, the Promised End tends to win. Thief of Existence can exile a noncreature, nonland permanent with mana value 4 or less when cast, hitting their Fight Rigging or incoming sideboard artifacts like Chalice of the Void, and its devoid nature lets it dodge some color hosers while fitting our colorless-heavy shell. Life from the Loam returns lands from our graveyard to our hand and gives us graveyard fuel to enable Emrakul's cost reduction and any delirium-adjacent needs, which is valuable in a grindy long game between two ramp decks. Watch for their Chalice of the Void and Trinisphere sideboard plans locking out our cheap spells, so sequence Ancient Stirrings and Malevolent Rumble early before they can land those artifacts.

Boros Energy floods the board fast with Ocelot Pride tokens, Guide of Souls, and Ajani, Nacatl Pariah's Cat tokens, so sweepers are premium. Firespout deals 3 damage to each nonflying creature when cast for {R}, wiping their 1/1 and 2/1 tokens along with Guide of Souls and Voice of Victory's Warrior tokens. Whipflare deals 2 to each nonartifact creature, killing Ocelot Pride, Guide of Souls, and most token generators outright. Unholy Heat is efficient removal for Ragavan, Nimble Pilferer or Ajani before he flips, with delirium upside from our natural graveyard fill turning it into a 6-damage answer for bigger threats like Voice of Victory. We're cutting slower or narrower cards like Walking Ballista and Haywire Mite since this matchup is about surviving the early onslaught, not grinding artifacts.

Affinity floods the board with small artifact creatures like Pinnacle Emissary's Drone tokens and relies heavily on Urza's Saga and Mox Opal, so cheap artifact removal and a sweeper matter. Whipflare deals 2 damage to each nonartifact creature, which sadly misses most of their board since Kappa Cannoneer, Pinnacle Emissary, and their Drone tokens are all artifact creatures — so only bring it in as a marginal option against their few nonartifact threats; treat it as a low-priority slot. Nature's Claim destroys target artifact or enchantment for just {G}, hitting Urza's Saga before it can find its payoff, or a problematic Mishra's Bauble-adjacent Engineered Explosives, though giving them 4 life is a real cost to weigh in a racing matchup. Keep Vexing Bauble in mind as valuable since it only counters spells cast for no mana rather than colorless spells, so our spells like Kozilek's Command and Malevolent Rumble (which is green) won't be countered since mana is spent to cast them, while it shuts down their free spells like Mox Opal and Mishra's Bauble.