Dust to Dust exiling two target artifacts is excellent here since Affinity's entire board (Refurbished Familiar, Utrom Monitor, Cryogen Relic, artifact lands) is artifacts, letting us two-for-one their key permanents. Tormod's Crypt does nothing against Affinity's non-graveyard gameplan, so both copies are cut in favor of proactive artifact removal. Keep our own artifact-land manabase and removal suite (Journey to Nowhere, Lightning Bolt, Galvanic Blast) intact since we need to race and answer their cheap threats like Refurbished Familiar and Glint Hawk.