In this tempo mirror, board control and resource efficiency are paramount. Wrath of the Skies acts as a flexible sorcery sweeper to clear low-curve threats like Tamiyo, Inquisitive Student, Nethergoyf, and Orcish Bowmasters tokens for small energy costs. Meddling Mage provides a targeted threat on a creature body that can name key removal like Fatal Push or top threats like Murktide Regent. We cut Daze because its value diminishes quickly in grindy, low-land-count exchanges, and Dance of Many due to its susceptibility to cheap disruption. Blue Elemental Blast remains in the sideboard because Dimir Tempo casts no red spells.

In this creature-dense midrange matchup, managing their token generation and board presence is vital. Wrath of the Skies is our premier sorcery sweeper, wiping out early permanents like Ocelot Pride, Guide of Souls, and Static Prison by converting mana to energy. Blue Elemental Blast provides efficient instant-speed answers to key red threats like Amped Raptor, Goblin Bombardment, and post-sideboard Pyroblasts, while also destroying a resolved Hexing Squelcher. Meddling Mage enters as a human wizard creature to lock down core answers like Static Prison or Swords to Plowshares. We remove Daze, which degrades rapidly against their low curve and land drops, alongside Dance of Many and a copy of Force of Will to maintain card quality.

In the WU mirror, board control and protecting your key permanents from sweepers and bounce spells are critical. Meddling Mage is a human wizard creature that can prevent the opponent from casting high-impact spells like Teferi, Time Raveler, Swords to Plowshares, or Wrath of the Skies. Force of Negation offers crucial noncreature spell interruption against opposing interaction and planeswalkers. We sideboard out Daze as it loses effectiveness as lands accumulate, along with Dance of Many which is easily punished by opposing bounce and removal. Blue Elemental Blast remains in the sideboard because the opposing WU list runs no red spells.