Hero of Time and Speed

Nightmare Moon knew she couldn't win. This… thing, whatever it was, was helping Celestia in their fight. It was fast, way too fast. Faster than anything should possibly be. She wondered, as she parried another blow from the creature's sword, was this creature a god? But soon, it didn't matter as the creature ran around her so fast, that it made a tornado.

Sure, Pegasi could do that, but it would take at least 100 of the strongest pegasi known to ponykind to do it. It ran around her faster and faster, and as she was about to attack the white and gold blur, a magical blast from Celestia stopped her. It was too much. Maybe if it was a one on one with Celestia, she could win. But this… she couldn't win. But she didn't give up, focusing her rage into a point but before she could cast it, the creature threw lightning, generated from it's own body, at the tainted teal magic around her horn.

There was an explosion, and before she knew what was happening, the creature was behind her, holding her down. "WhiTE AliCOrN! Do SOmEthINg!" It yelled at said white alicorn in a distorted voice. Celestia looked at the creature in worry before her horn and hands glowed, the Elements of Harmony surrounding her.

Nightmare tried her hardest, but a lightning quick jab at the back of her head dazed her. The next thing she knew, she was in a grey, dusty environment. All around there was nothing. But as she looked up, she saw it. Even though she had never seen it like this before, she knew where she was.

"No… NO!" Nightmare Moon tried everything in her power to get back, but the magic binding her to this place was still too strong, too potent. She would have to wait. So wait she did. Little did she know, she wasn't alone. On the far side of the moon, the side nopony ever saw, there laid the creature, passed out, saving its energy for when it would awaken.

Twilight, having been Celestia's protege for a few years now, looked up at Celestia in wonder, as she finished the story. "Wait, if the hero was good? Why was he sent to the moon?" Twilight asked, confused.

"Well… I think that he keeps Nightmare Moon up there. Fighting her endlessly in a stalemate that remains unbroken." Celestia said, looking up at the moon, a few tears coming to her eyes.

"So he sacrificed himself?" Twilight asked, a little saddened as well.

"Yes Twilight, he did… why though… I can't tell you because I don't know." Celestia responded, knowing exactly which question the curious filly would ask next. Celestia brought her into a hug, pointing at the moon. "But know this, when you're scared, and a hero will come to save you. Just like how that hero saved me."

"Alright… What was his name?" Twilight asked one final question as she yawned.

"Hmm… I believe he called himself, Godspeed."