Five days later.

The princess of the moon, princess Luna, sat at the bedside of her elder sister, Celestia, the sun goddess had attempted to fight Discord mentally on her own and had been gravely wounded and was now. Was now, dying. Straight after Celestia had sent the troops to Ponyville Discord had showed up, apparently the ones down in Ponyville weren't even his full, real army. He had thousands, where he all got them from, no pony knew. But there were thousands of black clad, spear holding, red eyed traitor ponies and some, some that weren't ponies no more, Luna had seen them from outside Shining Armor's shield. Discord had changed them, altered their looks to seem more, more chaotic. Luna began to hate Discord all over again for what the disharmony god had been doing and had done. Luna wasn't stupid though, if Celestia couldn't defeat Discord, then how could Luna, the moon princess still wasn't fully trained into modern magic anyway, there were too many descriptions of the spells as well as a lot more research into magic's like, Interdimensional travel, Destructive Catalysts and the evolution into the mana trails of Equestria since her banishment if Nightmare moon. Who could only, only be defeated by the Elements of Harmony! Luna had it. But nopony would like it.

"Luna. My sister, promise, promise to rule Equestria once I'm gone." Celestia suddenly muttered. Luna was taken aback. She hasn't actually thought that Celestia would probably die, but why would she? Celestria was her sister and mentor. Celestia was meant to be an immortal, to never die, but Luna saw the truth, Discord had really attacked her, Discord wasn't just out for chaotic revenge, he really was trying to destroy all of Equestria and so far, succeeding. Luna realized she hasn't replied and was just staring at Celestia.

" I promise sister." Luna said, almost putting in something like Celestia would be fine and that she would be up and about soon, but both Luna and Celestia knew that the sun goddess would fall. It was getting late and Luna would need to raise the moon in a few hours. Celestia nodded and closed her tired eyes.

"Rest sister. You fought bravely." Luna muttered, Celestia's breathing got shallow and Luna vowed to stay by Celestia until the end. Luna sat beside Celestia's bed and watched her. Then, suddenly.

"Luna. I love you, I always have." Celestia said, eyes still closed, her breathing began to slow.

"I love you too Celestia." Luna replied, but Celestia was gone. Luna's blood boiled, Discord, along with hundreds of others, had now killed Celestia. Luna didn't cry, there was no sadness, only hate. Luna so wanted to kill Discord now. No prisons, no forgiveness, next time Luna saw Discord, he would die. Luna knew that in her current state, she had no chance against Discord. But Nightmare moon, her stronger self had defeated Celestia before and was as immortal as Discord. Luna brought some guards in.

"Yes princess?" The first asked. Luna gestured to Celestia and the two understood, going to get the undertaker. Luna walked through the castle, not many guards here, they were all at the gates. Princess Luna walked out onto the balcony and watched the flames and explosions far of at the gates, Luna then went inside her mind. Searching. Then, she felt her body change, she had freed Nightmare moon and only had one thought, Discord. The dark princess screamed in hatred and spread her wings out as far as they would go.

"Discord!" She shouted and flow towards his armies. "Every one of them will die!" Nightmare hissed, Luna watched in her mind as Nightmare flow, where once Luna would have fought Nightmare moon every second of the way, now Luna welcomed her evil form and actually gave some of her pure magic to Nightmare moon to become stronger. Nightmare was still screaming and flow as fast as possible, heading straight to the battlefield. Nightmare moon shot upwards to the sky, above Discord's army. Nightmare continued to fly, wings flapping about and her black horn glowing her black and Luna's purple magic.

Then, when Nightmare moon was at a suitable height, she descended down, horn first toward the centre of the enemy army. Both Nightmare moon and Luna screamed, the moon came up suddenly and the darkness fueled more of the sparking energy. Magic was shooting from Nightmare's horn as it continued to gather. Light sparkled from the horn and Nightmare sped toward the ground. Then, she hit the ground. The dark blue explosion shot out across the besieged bridge, knocking back hundreds of traitors and mutants. Nightmare moon barely felt the impact as she cracked into the concrete and set off a great explosion of death and fire. Nightmare moon stood up, pushing the rubble off her body with her magic. The enemy were regrouping in front of Nightmare and she prepared to charge. She let her horn glow with magic as she prepared a spell. Some of the enemy were dead or had been blasted straight of the bridge. Luna watched Nightmare stamp the ground with her hoof and bend her head down, horn first. Then, she charged.