The Cursed Pony

At the field, Training to become a great warrior, Darkness keeps puzzling over what the voice said which causes him to realize what he must do.

"Darkness, you are five minutes late, do you know that being a good warrior needs to be here on time?" yelled his father.

"Really, it's only five minutes." said Darkness.

"Son let me tell you being a warrior, prince and later a king, you need to be on time." says Nightmare Moon.

"No more talking" said King Sombra when he saw Darkness trying to talk.

"Now lets find out what kind of powers you have." King Sombra continued

Hours passed by and Darkness tried his best to unlock his power(s), he did succeed in fighting skills and unlocking one of his power, mind controlling, for his cutie mark is a brain with a chain around it.

"Darkness, you have more than one power which it makes you different from other ponies, but to find out these powers, you need to do it on your own." Said King Sombra

"While you are doing that, your father and I will set up a meeting with the dark council alicorns, to discuss whether you're ready to rule a land or not." Nightmare Moon said.

"Alright mom, so should I keep on training here?" asked Darkness.

"Yes, you will. Keep training until you've mastered another power." Replied Nightmare Moon.

So while the prince is trying to master another power, the king and queen went to the meeting.