“This Colorless Prison/Ramp deck uses fast mana from Ancient Tomb and Grim Monolith to deploy early lock pieces like Trinisphere, while Karn, the Great Creator tutors silver bullets from the sideboard and The One Ring provides card advantage and protection. Urza's Saga assembles key artifacts and finds Candelabra of Tawnos to untap Urza's Tron lands, enabling explosive mana to deploy game-ending threats like Emrakul, the Aeons Torn or Ugin, Eye of the Storms. The deck wins by either locking the opponent out of the game entirely or overwhelming them with uncounterable, reality-warping threats that are impossible to answer through the established prison pieces.”
Missing sideboard cards? The full 15-card sideboard runs about $96.81.
Buy sideboard on ManapoolDimir Tempo relies on cheap interaction and free countermagic like Force of Will and Daze to protect Murktide Regent and flipped Tamiyo; Karn, Argent Defender shuts off their enter-the-battlefield triggers from Orcish Bowmasters and blunts value creatures while blocking well. Mycosynth Lattice fetched by Karn, the Great Creator turns all their permanents into artifacts, letting Pithing Needle and our existing artifact synergies interact more broadly, and lets us use Trinisphere-adjacent pressure against their disruption suite. Eldrazi Confluence and the top-end Summon: Bahamut are too slow and clunky against a deck trying to race on tempo, so trim them for cheaper, more impactful silver bullets. Keep leaning on Trinisphere and Karn to stay ahead of their Wasteland and Thoughtseize disruption plan.
Ocelot Pride Midrange goes wide quickly with Cat tokens from Ocelot Pride and Ajani, Nacatl Pariah, so Dismember efficiently answers key creatures like Guide of Souls or Ajani before they transform. Cityscape Leveler destroys a nonland permanent on cast and again on attack, giving us continual answers to their token engines, while Extinguisher Battleship wipes their small creatures with its 4 damage ETB trigger after first destroying a key noncreature permanent. Eldrazi Confluence's modes are less impactful against their go-wide token swarm compared to a sweeper effect, and Giant's Boulder/Pithing Needle are too narrow here since their deck isn't activated-ability dependent. Keep Trinisphere in to tax their cheap interactive spells like Swords to Plowshares and Static Prison.
Sultai Aluren wants to cheat in Atraxa, Grand Unifier and other big creatures via Show and Tell, Aluren, and Omniscience-fueled chains, so Grafdigger's Cage is excellent, stopping creature cards from entering the battlefield outside the normal cast process and shutting off any graveyard-based recursion. Tormod's Crypt and Soul-Guide Lantern give extra graveyard disruption against their self-mill plan from Stock Up and Brainstorm. Trim Giant's Boulder and Pithing Needle since their deck doesn't rely heavily on activated abilities we can target, and Summon: Bahamut is too slow against a combo deck looking to assemble Show and Tell into Atraxa or Omniscience quickly. Karn, the Great Creator and Trinisphere remain crucial to disrupt their mana and lock pieces like Lotus Petal and City of Traitors.