Project: Black Rainbow.
Crossing the threshold of the balcony where the afternoon light sparkled between the mountains in the background in a beautiful clearing of trees and flora. In front of them is a table with three strange crystals, one white, one black, and a strange rock or gem with strange colors.

-a strange voice, as if coming from a speaker, began to sound-
W: Welcome, royalty, -said the figure- turning around, the figure presented itself before them
W: My name is W. OppenJaime. But everyone knows me as Wheatley.

The princesses remained silent, the tallest along with the shortest introduced themselves without problems, but the sister was still stoic, Candace was the only one shocked to know that the figure she saw was nothing more than a shapeshifter, but what was most disconcerting were those eyes bright as the sun.

W: Thank you for coming to my discovery of three crystals of somewhat uncertain origin: a positive crystal (the white one), a negative crystal (the black one), and one I call rainbow obsidian. Now you might think it's the same as the crystal statues in the Crystal Kingdom or that the dark crystal is from the shadows or dark magic, but you're wrong.

Each crystal has a charge, one positive and one negative, but these rotate like the charge of a magnet. Instead of attracting each other, they violently repel each other. Puts the crystals together a little and you can see sparks coming out This is because the charges collide. But tell me what happens if they get so close they collide with each other.

Ts: Oh, I know. The charges would magically begin to fission, creating... an... explosion. Twilight felt a lump in her throat. Celestia's face went from happy to more serious. Luna became a little defensive, and Candance was confused about where this was going. Then the crystals spoke. Some celebrated, others cried, but most remained silent.
While Wheatley celebrated, the princesses saw the terror of their creation.

W: One last thing, rainbow obsidian is the result of the explosion of its residue, a rainbow trapped in darkness.

🎶“There is wonder in most everything I see Not a cloud in the sky, got the hydrogen sun in my eyes And I won't be surprised if it's a dream Everything I want the world to be Is now coming true especially for me
And the reason is clear, it's because you are here, You're the nearest thing to heaven that I've seen I'm on the top of the world looking down on creation and the only explanation I can find”🎶