Izzet Affinity is a fast artifact-based combo deck that wins through Kappa Cannoneer and Patchwork Automaton snowballing off free artifacts like Mox Opal, Mishra's Bauble, and Urza's Bauble. Null Rod is your most powerful hate card here, shutting off Mox Opal, Mishra's Bauble, Urza's Bauble, Aether Spellbomb, and Shadowspear simultaneously, which guts their engine and mana production. Containment Priest shuts off Emry recursion and Urza's Saga token triggers, both of which are critical to their late game. Deafening Silence slows their ability to chain spells in a single turn, buying time for your aggressive creatures to close the game. Cabal Therapy and Hexing Squelcher come out because blind discard is less reliable here than permanent-based disruption, and your creature density remains high enough to pressure them quickly.