The Storm King survives his death and is sidetracked from his revenge mission against Twilight and Tempest by his hate for cuteness, leading him to a vendetta against the three cutest ponies - Fluttershy, Rainbow Dash, and Rarity. How can they defeat him?

Of course, it is subjective as to who the cutest ponies are, but most of us can agree that Fluttershy is the cutest. Also, this story isn't meant to fit into canon (hence the Alternate Universe tag), and in no way do I have a headcanon that the Storm King survived, I'd like to think he and Sombra stay dead as of canon.