Magic Breakdown

The story about the island in Human Equestria where the Staff of Sacanas was found is revealed to have been orchestrated by another family member of the Storm King, The Singularity King, who has sought after the dimension for the magic anomalies present there to use for evil and to avenge the Storm King, as the storm that disturbed the Humane Seven was meant to use the Staff of Sacanas, which was actually Singularity King's disguised staff, the Quarterstaff of Opibus. With it destroyed, Singularity King is in Canterlot High and wreaks havoc, stealing the Mane Seven's geodes, using Equestrian magic to restore his Quarterstaff to make a stronger version of the storm surrounding the entire city, and with Sci-Twi and Sunset the only ones to escape with help from Coo, the Lodgers have been alerted and with Singularity King siphoning the magic from this dimension and becoming a Satyr-human monstrosity, the heroes must stop him before he destroys the dimension sapping it's magic.