It's never easy to help somepony who doesn’t see it as help. Yet Phyllis was determined to try for Sunny's sake, before the young mare's endeavor for an impossible change consumed her.
Long ago, Princess Celestia took on an important responsibility from Pinkie: to keep their world going. She’d seen the toll it took on Pinkie Pie, but she couldn’t allow anyone else to bear it. If only a higher authority could assume the burden.
Equestria has been granted unlimited electricity thanks to Flim and Flam's changeling batteries. Cadance isn't okay with abusing love to power a modern Equestria. Shining Armor can't let her destroy it all. Only one gets to win.