When Sweetie Belle got zapped during the Zap Apple Harvest, no one thought much of the filly's light electrocution. However, the zapping has given her a most unusual ability... the ability to change the color of objects, temporarily, into the colors of the rainbow. This is surprising to the little filly, as she has yet to achieve mastery of most magical arts beyond a novice.

Naturally, her adventurous streak gives her an idea. Sweetie Belle will become a superhero. She is the vibrant guardian, the watcher of the palette. She is...

Zapfilly.