Affinity is almost entirely artifacts and artifact lands, making Dust to Dust one of our best possible sideboard cards, exiling two artifacts at once (note it exiles, bypassing the indestructible artifact-land Bridges' protection from destruction). This slows their affinity cost reduction for Refurbished Familiar, Utrom Monitor, and disrupts their Blood Fountain/Cryogen Relic value engine. We trim Prismatic Strands since Affinity's creatures are split across multiple colors rather than a single color and Ramosian Rally as a lower-impact card. Keep pressuring the board since Affinity can also go wide with creatures like Kor Skyfisher and Glint Hawk.