The EPIC Storm chains Dark Ritual, Lion's Eye Diamond, and Burning Wish into a storm-count kill via Tendrils of Agony, so Deafening Silence is a powerful hate card, restricting them to one noncreature spell per turn and completely breaking their combo turn's chain of rituals and cantrips. Consign to Memory can counter any colorless spell they might run and any relevant triggered ability, giving cheap flexible interaction to disrupt their sequencing before they reach critical mass. Stifle has narrow targets against their mostly spell-based combo (their few triggered abilities are not the primary win condition), so it's cut for the more broadly impactful Consign to Memory and Deafening Silence. Force of Will and Force of Negation remain essential since they can Veil of Summer away from blue interaction, so timing your counters to bait Veil of Summer before committing your real answer is key.