Power isn't Everything

Aria was panting as the trio finally got away from the Shell Stage, "What...What was that!?"

"N-no idea," Sonata replied, her hands on her knees.

"I wasn't asking you stupid!"

"Enough! That, my dear, was Equestrian magic that should have been ours! If only that little bitch Shimmer hadn't managed to keep them together as friends," Adagio said, mumbling at the end as her foolproof plan was obliterated so spectacularly that it even got the gems the girls used to explode and leave them powerless. "I will have my revenge on Sunset Shimmer!" Blood started to trickle from the wounds on her palms her fingernails dug into.

"I want her to suffer even more than you do Adagio!" Aria stated, pointing at the eldest Siren. "Maybe I'll let you have your way with her when I'm done, if she's even breathing." Aria let out a harsh laugh, Sonata on the other hand just seethed silently as her once beautiful necklace now lay as a blank band around her neck.

"You? You won't be able to touch her as you are now Aria," Adagio crossed her arms and shifted onto one hip. "I on the other hand still have my cunning and wit."

The three continued like this, arguing with each other, all the way back to their little house twenty blocks from the school, but thirty from the Shell Stage. Leaving them with an hour to yell and grunt at each other. None of them noticed the figure that was stalking them, getting closer as their anger grew, feeding off of each of them, into an almost physical form.

The front door slammed as Aria, the last in the line to enter the house, kicked it with a foot. She had ran out of breath about twenty minutes ago so was more interested in getting to bed, only to bump into the other two.

"Why the hell are you two just standing there?" Aria grumbled, forcing her way to the front. She stopped when she soon became face-to-face with a boy around their age, dressed in all black and wearing a mischievous smile on his face. He was all white, from his skin to his hair to his eyes and nails. His grin kept widening as he stared into Aria's black soul.

"I can give it to you," came a hollow voice that emanated from the boy's throat, even though his mouth never stopped smiling. "I can give you revenge and give you power, your anger and hatred for this 'Sunset Shimmer' has called to me and given me physical form." The being stepped back a little and motioned to the couch and chairs where they all promptly took a seat save for the white man.

"I will warn you, I am guaranteed to succeed in the task-"

"Then why are you warning us? I mean, if we have you do it you better succeed," Aria interrupted.

"Because know that even though your revenge will be swift, and your power greater than before, the consequences of killing this Equestrian-human being will be more severe than you may be willing to endure."

Surprisingly it was Sonata that spoke next, "Do it."