(I think this was a stupid story to make. I didn't think this over clearly enough to make this a good story. I think you'd say otherwise, so I hope 你 enjoy.)
It was a beautiful 日 in the Crystal Empire. The Crystal Ponies were all doing their many errands as the Ponyville ponies did, especially talking about many things, mostly the supreme rescue of the Crystal Empire and King Sombra's death. Those two topics were to be remembered for a long time. It was also good to see their Crystal Queen, Princess Cadance ruling, along with her honey, Shining Armour. After the Crystal Empire was saved, there were no other problems going on for a long time. But it would all change one day.
One day, there was a crystal 小马 in the empire named Skull that wanted to become richer than his imagination would ever think up. He studied necromancy ever since he was a little colt. But as he grew up, he thought the idea of revival was a joke. On this night, he decided to become rich 由 trying to steal some jewels from Princess Cadance and sell them on a black market. He failed miserably because when he tried to take one away, the princess caught him and threw him in prison. 3 months later, he was released and decided to exact revenge. How? 由 destroying Cadance and the Crystal Empire 由 means of necromancy. He was going to revive King Sombra and take over the world!
It has been 3 更多 months after Skull has been released from prison. During that time, he was studying necromancy hard for his revenge against the princess. He then searched for crystals for the revival of Sombra. It wasn't going to be regular crystals, though. It was the dark crystals that were made 由 the Evil King. Thought to be gone forever, Skull kept looking until he found black crystals that gave of a little red lightning. He got some, drew a large reviving pattern on the ground and put the crystals on it. "Finally," Skull said. "It's time for revenge." After an 小时 of chanting, there was red lightning all over the place. The crystals disappeared in a bright green light, pushing Skull back far. After the light went away, a familiar figure in dark armor and a regal cape appeared. Skull had succeeded in bringing back King Sombra from the dead, but he was weak.
"Yessssss... I return." the Evil King 说 softly. "Hail the rightful ruler of the Crystal Empire!" Skull said, bowing before Sombra. "I have revived 你 from the dead to exact revenge against Cadance and destroy the Crystal Empire. Think of what we can achieve!" Sombra, thinking about this, said, "A good plan, yesss, but while I was in Hell, I had other thoughtsss. Maybe seeking revenge was not a good idea and will not be a good idea. I failed to take over." Skull was surprised to hear this. He thought what Sombra 说 was stupid. So stupid, in fact, he thought that bringing back the Evil King wasn't a good idea. He tried to kill what he brought back, but Sombra used his magic on Skull to put him back into the prison he was in 6 months ago. "Now... A talk." Sombra thought. He then made his way to the Crystal Empire 由 walking.
Later, he made it to the Empire. As soon as some crystal ponies see him, they all run and scream in sheer terror. Cadance had seen him at the ground and decides to take him out. But he immobilizes her. "Stay still, princess," Sombra said. "I would like to have a talk with you. It's about peace agreements. No, I'm not lying."
Shortly after, both rulers were in the 王座, 宝座 room of the castle. It has been an 小时 of talking, but they came to an agreement. "So, you're saying if 你 want to be my friend, you'll become a servant of mine? After what you've attempted?" asked Cadance. She also added that she wasn't so sure he was telling the truth. Tears welling up, but not crying, Sombra said, "I have had thoughts while I was in Hell. Thoughts that we could become 老友记 由 the most peaceful way possible." 更多 tears came, but he pushed onward with his inquiry. "I had regret the days I had ruled this land with evil, but was defeated, and when I came to take it back. A long time had passed, and I have no 更多 intentions of taking over. I want to become 老友记 with you. I can't be part of this darkness forever!" After that, he was starting to cry, but ever so weak.
With great love, Cadance came up to him and put her arms around him. "It sure has been a long time after 你 came back," she said. "After 你 were beaten, I thought you'd one 日 come back. I never thought it would be like this. I guess we can become friends." Upon hearing this, Sombra was surprised to hear this. He was also happy. After this, he gave up his evil kingship and joined up with Cadance.
All the Crystal Ponies were surprised to hear that Sombra had 给 up his evil and joined with their Queen. But soon after, they accepted him into their world as a newly acquainted character. As with Skull, he was still in prison because his plan for revenge was told to Cadance 由 Sombra. She decided to keep Skull in prison for longer in hopes that he will never do anything like that ever again.