Affinity has no red cards, so Pyroblast and Red Elemental Blast are dead, but Smash to Smithereens is excellent since nearly every permanent they cast is an artifact (Myr Enforcer, Cryogen Relic, Giant's Boulder, Baleful Strix, Blood Fountain, Nihil Spellbomb) and the 3 damage is relevant race damage too. Crimson Fleet Commodore gives us a body that survives their small fliers and steals the monarch for extra card advantage in a grindy matchup. Trim the lowest-impact looting effects since the deck is already proactive and card selection matters less against a deck with no sweepers.