Sombra looked out from his balcony to see the numerous soldiers that stood in perfect lines. He knew this would be more than enough to storm an entire city. His only obstacle now is the forest with the beasts. He was just about yell a command when he sensed something. Off in the distance, outside the dome, he saw two ponies wearing the same armor. He was confused as he thought he lost contact with those troops. Never the less he went up to the edge of the dome and opened it up letting them inside. They had a stretcher that had one of the wendigos unconscious.
"How intriguing. Take this beast to the dungeon."
What he didn't know those two soldiers weren't exactly his.
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Down below Twilight Sparkle was chained to a table. Her cell had strange gadgets surrounding her. Her friends were moved to a different cell further away. Sombra decided to make her a royal scientist. She would be forced to do research or her friends would be forced into the armor. She already lost Applejack and Rainbow Dash to Sombra's control.
Soon enough the cell doors opened and Sombra entered while levitating the unconscious beast and placed it on a lab table. "This beast nearly wiped out a platoon of my soldiers. Examine this specimen for a weakness and record your findings, or the one you call Fluttershy will be next."
Twilight gulped and looked at the beast as Sombra left. She has never seen anything like this. She used her magic to levitate a scalpel. Just as she was about to cut it's skin the claw suddenly grabbed it. Twilight jumped as the beast quickly leaped up and grabbed her. Twilight tried to scream but her muzzle was clamped shut. "Shhhh don't be scared i'm here to help."
The beast slowly released his grip on Twilight as she calmed down. The student of Celestia looked up to him as he put her down on the floor. “Who are you? What are you?”
“I’m a Wendigo. The name's Bruce by the way.”
“Wait you’re a windigo? You don’t look anything like them.”
“That’s because your culture took our name, relettered it like a pun and slapped it on the ice spirits. That’s what they’re really called.” Explained Bruce.
“What? But how? Why?” Twilight Stammered but Bruce raised a claw silencing her. “There will be plenty time for questions later now we need to know something important. What’s controlling the dome now?”
“Sombra’s magic why?”
“Perfect when he comes back act natural.”
“Why? Just why are you helping me?” Asked Twilight.
“Because both our leaders are old friends.” Said Bruce as he got in the table to play dead.
A while later Sombra came down to check on her progress. “Twilight have you found a weakness or do I have to make more soldiers out of your friends?”
“There’s a sensitive weak spot but you might want to come closer as it would be easier to explain.”
Sombra raised an eyebrow and trotted closer to the beast who is covered in a sheet. When sombra removed the sheet it happened. Bruce sprang up and latched on to the stallion’s horn. Sombra was surprised and attempted to blast him off. There was a blinding light in the cell for a moment. But when it died down, Sombra was on the floor but his horn had some damage. He slowly got up with rage in his eyes. "I'll rip you to shreds for that."
But when he got up he saw the table no creature and Twilight was no where to be seen. He then noticed the cell door was broken. "Where did they go?"
He then felt the cold air that was seeping through the iron bared window. A wave of realization struck him as he looked outside. The dome was gone and the harsh winter weather was already spreading across the city like a blanket. Sombra paled as his horn barely functioned. He then ran out and sent a command hoping his slaves were still under his control. As he got closer he heard the sounds of a battle outside. He looked out of a balcony, and to his surprise, there was his army fighting both wendigos and Celestia's soldiers. He smiled as he thought he still had control. But then he noticed something odd.
The wendigos were only going for the head which caused their helmets to go flying off. He then saw Twilight sparkle Using her magic firing a beam at a charging group of crystal soldiers. They stopped only for thier helmets to be levitated off of them. Sombra gasped at the sight until he realized something. "Straps... I forgot to equip those helmets with straps so unicorns won't get them."
"That's right Tyrant." said a gruff male voice.
Sombra turned to see both Celestia and Fafnir standing behind him. "You see Sombra, the biggest difference between you and us is that we're smart."
"and you're pure evil." Finished Celestia.
Sombra attempted to charge his horn to blast them but Fafnir was quick. He grabbed onto him tightly with one arm and used his other to snap his horn off with brute force. Sombra screamed in pain struggled against his grip. "You think you won this battle Celestia. The empire will tear yours to the ground."
"Is that so Sombra. I guess I have no choice. Your heart is too dark to even try and accept the hoof of friendship. I should bring you back and give you a trial for what you did but something tells me it's not worth it."
"And what will you do? Turn me to stone like you did to the spirit of Chaos?"
Celestia's horn glowed and turned to Sombra with a face that was a mix of fury and judgement. "Fafnir hold him still this spell needs to be precise."
Sombra's face then started to show fear he tried to use what was left of his horn but it was nothing but a stump thanks to Fafnir. All he could do was stare at her in wide eye horror.
The next moment the crystal ponies collapsed, the snow storm stopped and the sun began to shine. Twilight Sparkle stopped as she saw this. She then turned to the Crystal palace while Fafnir and Celestia looked down at something. Whatever happened inside the palace was a result of Celestia's judgement.