Eldrazi leans heavily on Kozilek's Command and Eldrazi Confluence for interaction, so Deafening Silence limits them to one noncreature spell per turn (Lotus Petal and Chalice of the Void count too) while barely affecting our creature-dense plan. Pre-War Formalwear and one Flickerwisp are cut because their value is marginal against this deck, which gives us few good blink or reanimation targets and has no graveyard synergy to exploit. We keep the other Flickerwisp, which can temporarily exile a Chalice of the Void so it returns with no counters. Keep the Swords to Plowshares and Solitude suite in: they handle Thought-Knot Seer cleanly, and Solitude's enters trigger is an ability rather than a spell, so it avoids Reality Smasher's discard tax that applies to Swords to Plowshares. Sire of Seven Deaths has ward, so any removal aimed at it costs 7 life. Aether Vial and Stoneforge Mystic remain central because they put permanents onto the battlefield without casting them, which gets around Chalice of the Void.