Izzet Spellementals is another all red-and-blue spells deck, so Flashfreeze counters nearly everything they cast, from Burst Lightning to Prismari Charm to Slickshot Show-Off. We Say Thee Nay! and Spell Snare are too passive against a deck that wants to chain cheap cantrips and grow Eddymurk Crab or Hearth Elemental, so they come out. Ghost Vacuum lets you proactively exile threatening instants and sorceries from their graveyard before Eddymurk Crab's cost reduction gets out of hand, and can be sacrificed later to put exiled creatures onto the battlefield. Prioritize Floodpits Drowner on their early Eddymurk Crab and Requiting Hex on Slickshot Show-Off before they start compounding value.

UR Aggro features many red spells, so Flashfreeze is an active counter against key threats in their deck, including Devastating Onslaught and Hex Magic. We Say Thee Nay! comes out because it needs board presence to tap for teamwork and this matchup is about surviving early pressure, not setting up value. Wan Shi Tong, Librarian comes in as a flash flying blocker that can scale up as extra mana becomes available late. Prioritize Floodpits Drowner and Requiting Hex to answer their early creatures before Spider Manifestation or Llanowar Elves snowball out of control.

Azorius Tempo leans on key noncreature spells like High Noon, Airbender Ascension, and white removal like Erode and Avatar's Wrath, so Duress effectively strips these crucial noncreature targets from their hand. Disdainful Stroke is well-positioned against their few expensive spells while their creatures are mostly small, so Nowhere to Run's -3/-3 is less necessary and comes out along with Spell Snare to make room for broader interaction. High Noon restricts both players to one spell per turn, so prioritize efficient, high-impact plays and use Kaito, Bane of Nightmares to apply pressure they can't easily remove. Enduring Curiosity is a strong mirror-breaker since it returns as an enchantment after dying, dodging their removal suite.