Ruby Storm needs to chain a large number of cheap rituals and cantrips (Desperate Ritual, Pyretic Ritual, Manamorphose, Wrenn's Resolve) into a Grapeshot or Past in Flames kill, so Trinisphere is one of the best cards in the deck here, taxing every ritual and cantrip up to three mana and making their storm count nearly impossible to reach. Thought-Knot Seer strips their key payoff or a protection spell like Silence before they can deploy it, and its body pressures them to act faster than they want to. This matchup is a pure race against a combo kill, so prioritize disruption over raw threats — cut clunky value creatures for the taxing effects and hand disruption.