Jeskai Artifacts relies heavily on cheap artifacts like Mox Opal, Lotus Petal, and Mishra's Bauble, making Engineered Explosives a clean way to blow up their mana rocks or cheap creatures at the right charge counter count. Damping Sphere punishes their Urza's Saga and artifact mana base by taxing multiple spells per turn, slowing their combo assembly with Goblin Welder and Emry, Lurker of the Loch. Snuff Out is a poor fit since they have few relevant nonblack creatures worth that much life, and Brazen Borrower is clunky against a deck that can rebuild artifacts easily. Keep Wasteland and Thoughtseize fully in since denying their Urza's Saga and stripping key combo pieces remains the most impactful plan.