Izzet Prowess is a fast noncreature-spell deck, so Consign to Memory is excellent, countering colorless spells like Mishra's Bauble and stopping triggered abilities like Cori-Steel Cutter's Flurry. Fire Magic's Fira mode (3 mana, 2 damage) wipes Monastery Swiftspear and Slickshot Show-Off cheaply, though it won't kill a delirium Dragon's Rage Channeler once it's a 3/3. Sheoldred's Edict is weak here since it only hits one creature per cast against a go-wide aggro plan, so trim it for cheaper interaction; Cryptic Command is clunky at 4 mana against a deck that kills fast. Surgical Extraction can strip a key Lightning Bolt or Expressive Iteration after it resolves once, denying redundancy.