MLP Future: Prince of Unity

Sky barely made it to the school to see everyone finish getting their diplomas. He stands at the entrance, smiling. Suddenly, Twilight steps up to the podium again.
"Now, I know many of you are ready to get out there, but we have two creatures here that wants to say a few words. Ocellus and Gallus, please come up to the podium."
Immediate, Ocellus rushes up, while Gallus was tossed up by Yona.
"Ack! What was that for? I didn't volunteer!" Complained the gryphon.
"Well, the rest of us did Gallus." Snickers Sandbar.
"Heheh, Ocellus wanted to do team speech, but Yona not good at talking."
"Yeah, and you always know how to make your mouth fly as fast as you actually can." Giggles Silverstream.
Gallus looked to Sandbar with pleading eyes, to which he chuckles lightly.
"Sorry Gallus. You are on your own in this." Sandbar chuckles as Gallus sighs in defeat. After the laughter from the scene dies down from in the auditorium, Ocellus steps to the podium to begin her speech. However, a loud crash sounds from above. Every creature looked up, and several dark armored pegasus ponies fly down. Amidst a chaos that could rival Discord, two pegasus ponies grabbed Ocellus, carrying her away as she screamed.
"Ocellus!" Sandbar tries to jump after her, but gets hit by a beam of red magic. Sky, seeing his friends getting hurt and separated, jumps into the air and flies at the pegasi. Not noticing him until it was too late, they get slammed into each other and drop Ocellus. She catches herself with her wings flaring open, landing safely next to Sandbar in concern.
"Sandbar! Y-you're going to be okay. I promise!" she cries. However, an evil chuckle is heard from within the cloud of dust created from the debris. Sky recognized it from his vision, now feeling his legs become shaky.
"Well well well. So this is the so called "School of Friendship?" Looks more like a gathering of useless creatures and lowly ponies, to me." Said the dark, male voice. Before anyone could say anything, a beam of red magic flies at the Young 6. However, it is deflected by a violet barrier. Everyone turns and sees Princess Twilight's horn glow the purple aura of her magic.
"Who are you? You have no right to coming here and destroying my school!" She yells at the figure. Even though no one could see his face well, his gaze could be felt.
"Who am I? I am the new king of this land! I am your new ruler, and all creatures here shall obey me, King Shadin!" Yells the stallion angrily. He steps out of the dust, and everyone simply gasped at his appearance. He was not a unicorn, but a soot black furred alicorn. His horn was shaped like a lightning bolt, zigzagging sharply. Sky feels a sharp pain suddenly, his head burning for some reason. This alicorn was in his vision, but somehow Sky felt something more.
King Shadin suddenly placed a hoof on his forehead, like something hit him. He looks around the room until he spots Sky.
"Bring me that pegasus!" He yelled, pointing towards Sky Heart. Just before the soldiers could, a light blinds every creature. King Shadin glares where Sky was, because when the light was gone, so was everyone else.
"Hmmm. It seems we are connected somehow, little pegasus. How I don't know, but I will find out."