(Warning: This story contains spoilers for the story of Kirby's Return to Dreamland, more specifically, Kirby's Return to Dreamland Deluxe as it also contains spoilers for the Magolor Epilogue.)
(This story was inspired by the story C-R-O-W-N-E-D S-O-U-L written by Mordy. This story does use a few elements and small events from said story, but other than that, everything else is my own work. I hope you enjoy!)
The Master Crown. An artifact of the Ancients that is said to give one limitless power, at the cost of the wearer's own mind and soul potentially being corrupted by its own influence. However, no one in today's time would expect said influence to be an actual conscious being that had been sealed within the crown thousands of years ago. That being said, what happens to this being after the crown has been shattered into pieces once more, and by its most recent wearer no less? It and the broken pieces of the Master Crown eventually drift through dimensions and into Equestria. What will a being who had been trapped for a few millennium find in this strange and colorful new world? Revenge? Anger? Peace? Or new friends who just want to help it? Who knows. Only time will tell.