UB Tempo is another cantrip-and-disruption deck built around Stormchaser's Talent and The Fantasticar backed by Thoughtseize, Force of Will, and Daze, making this very similar to the other blue-black tempo matchups. Sheoldred's Edict is the standout sideboard card, cleanly removing their singular threat without being vulnerable to Daze, and the extra Talon Gates of Madara improves resilience against their own Wasteland while trimming a Bayou that's less necessary without heavy green demands from the opponent. Keep Thoughtseize and Wasteland as your primary proactive disruption, stripping their Dark Ritual or key threat before they can protect it with countermagic. Sideboard cards like Leyline of the Void and Force of Vigor stay out since they have no meaningful graveyard or artifact plan to attack.