The EPIC Storm is a glass-cannon combo deck that wants to resolve Tendrils of Agony or Beseech the Mirror on an uninterrupted turn, protected by Veil of Summer, making our Thoughtseize and Unmask the premier tools to strip their Dark Ritual, Lion's Eye Diamond, or Lotus Petal before they go off. None of our sideboard cards improve on this plan: Snuff Out and Ashen Rider are removal spells with no live targets in a deck that plays almost no creatures, and Show and Tell/Stronghold Gambit don't add relevant disruption. We keep the 75 and lean entirely on our discard suite, sequencing Unmask and Thoughtseize on their key turn to deny the ritual effects or Burning Wish that enable their kill.