This clever loop relies on the card-drawing activation of Sensei's Divining Top to constantly cycle the artifact back onto your library, where it can be recast for free. The magic happens because Madame Web, Clairvoyant grants you continuous access to cast noncreature spells right off the top of your library, effectively turning the Top into a self-replenishing engine. Meanwhile, Samut, the Driving Force serves as the crucial cost-reducer, shaving {X} off the casting cost of your noncreature spells based on your current speed; once your speed is at least 1, Samut entirely eliminates the {1} mana cost required to cast Sensei's Divining Top, allowing you to draw your entire deck and rack up an astonishing storm count without spending a single additional mana.