This matchup is defined by Guardian of the Guildpact, which has protection from monocolored — every burn spell in your deck is blanked against it, and your creatures cannot block it. Your only realistic path to winning is going wide and fast enough to close before Armadillo Cloak generates an insurmountable life lead; prioritize Goblin Bushwhacker and Rally at the Hornburg to pump your board around or past the Guardian rather than into it. End the Festivities comes in as a non-targeted sorcery to sweep Sacred Cat and Outlaw Medic before they generate meaningful life totals, and it can occasionally set up a profitable attack by clearing their small bodies. Searing Blaze adds an efficient removal spell that also deals damage to the opponent, keeping your clock relevant while answering threats like Raffine's Informant. Clockwork Percussionist is trimmed because it neither attacks through nor blocks Guardian effectively, and the Reckless Impulse cut keeps your curve aggressive — you want to end the game on your terms before their late-game lifegain engine takes over.