Mother Discord

As the alter was filled with various ponies clamoring together to see the union between two royals, Screwball couldn't help but giggle mischievously to herself, as she couldn't wait to see the look on everyponies faces when they see that "Cadance" is not Cadance.

"Princess Cadance and Shining Armor, it is my great pleasure to pronounce you-!"

"STOP!!!"

Screwball's jaw dropped as she saw the annoying bookworm had somehow escaped the caves, which made her very unhappy.

"Ugh! Why can't she keep her nose away from where it doesn't belong?!"

Screwball's eyes widened as her "mother" was about to blow "her" cover.

'No! No don't blow it!'

"I mean, 'why does she have to ruin my special day?'"

Screwball let out a sigh of relief.

'Phew, nice save.'

"Because, it's not YOUR special day, IT'S MINE!!!"

Screwball gasped at the sight of the REAL Princess Cadance, knowing that her presence just ruined their entire plan.

"Wha- HUH?! But how did you escape the bridesmaids?!"

One flashback later.....

Screwball was flabbergasted how Discorded ponies could be snapped out of it through simple greed.....

"Heh. Clever, but you still can't stop me!"

"I don't understand! How can there be two of her?"

"He's Discord! He imprisoned me in the caverns of Canterlot so he could steal my face and drain my groom's energy away!"

"DISCORD?!"

Screwball glanced at her "mother", before "she" gave a nod in her direction.

"Well I guess the cats out of the bag. Or in this case, the Draconequus is out of the pony."

As Discord revealed his true form to the ponies, Screwball snickered to herself, as she knew they only needed to stall for enough time until the captain was too weak to hold up his spell.

Discord laughed maniacally as all the ponies cowered before him.

"You madam, are correct! For your fiance shares blood with one of the six bearers of the elements of harmony, making him able to cancel my power. I stole your form so I could get close enough to RIP THE HARMONY RIGHT OUT OF HIM, allowing Canterlot to be consumed by countless chaos! Hah ha!"

"I won't let you! I'll save Shining Armor!"

"Oh, I wouldn't do that if I were you. Not unless you want to go back to the caverns, WITH NO FOOD OR WATER."

Cadance stepped back out of fear.

"Ever since I pulled the switcheroo, I've been Discording the captain to be a weak, pathetic klutz, somepony who is INCAPABLE of protecting a capital!"

"NO!"

"And, once Canterlot has gone crazy, me and my daughter will turn Equestria on it's head! Hah ha ha!"

"Daughter?...." Twilight repeated in confusion....

"Oh yes, where are my manners? Oh screwy!"

Screwball revealed herself to the ponies as she laughed like a loony, causing several of them to gasp in surprise.

"Our hapless puppets, meet Screwball. Screwball, meet our hapless puppets!" Discord taunted as he lifted Screwball in a tight bear hug as she kept giggling.

"Discord.... You never mentioned anything of a daughter. Where has she been the entire time you were in stone?" Celestia confronted the cryptic chaos spirit.

"Well, since you were only kind enough to ask NOW Celly, I created Screwy here with my chaotic powers well before my first reign over Equestria, so I had SOMEPONY who would enjoy the wonderful chaos with me! Alas, we only got to spend so much time together until you and your emo sister zapped me into a macabre work of art. And she didn't even realize I was freed the first time before it was too late..... But not this time." Discord explained, as he gave Screwball more noogies.

"This is getting out of hoof, now there are two of them!" Rainbow Dash groaned in annoyance.

"Well, daughter or no daughter, you made the mistake of revealing your true self! Now I can protect my subjects, from YOU!" As Celestia fired a beam from her horn, Discord responded by firing lasers from his fingertips.

But as Twilight and the others rushed to retrieve the elements, Screwball threw a comically large pie at Celestia, causing her to fall back weakened.

The violence and shock was enough to get Shining Armor so scared he completely Discorded, and the barrier collapsed.

"I WON'T, let you, hurt him again!" Screwball lashed out defiantly, as Discord chuckled to himself.

"Now that's my girl!" Discord congratulated, as all the ponies gasped in horror at the fall of their beloved princess.....