Grixis Affinity is almost entirely artifacts and artifact lands, including indestructible Bridges, so Deglamer's shuffle effect is premium removal that bypasses indestructible for key pieces like Myr Enforcer, Ichor Wellspring, or a Bridge land. Relic of Progenitus adds incremental graveyard disruption against Blood Fountain's recursion and can later wipe all graveyards for a card. We trim the top-heavy Annoyed Altisaur and the slower Eldrazi Repurposer since this matchup is a race decided by efficient interaction, and Structural Distortion's redundant exile effect gives way to the more flexible, cheaper Deglamer.