In Canterlot Palace inside working in a lab was Twilight and Blueblood, both wearing labcoats and goggles. They were using their horns to work on a new Mark of the Iron Pony Armour.

"Enemies will face the wrath of Iron Pony once the Mark IV is complete!" said Blueblood. The Mark I armour he made was the prototype armour made to test the flying capabilities, the Mark II was made to test out the combat capabilities and the current Mark III was made to combine the capabilities of both into one.

"Iron Pony is still formidable as he is now" Twilight said "while toe pony inside is a great stallion!"

"You're too kind Twi" laughed Blueblood. Then entered Spike the Dragon with a weapon Blueblood asked him to get. Spike then gave it to him.

"Thanks Spike, I would give you some gems as a reward but I only got one and it's kind of keeping me alive!" said Blueblood as he began working the weapon into the new armour.

Then came in T'Challa holding a copy of the Canterlot Gazette in his mouth. He placed it on a table which showed the headline "TEN RINGS STEALS EXTREMIS FORMULA!"

"What do you make of the headline Fellow Avenger?" asked T'Challa as his teammates looked at the paper on the table.

Blueblood scowled when he saw the headline. "What are these Ten Rings and what is this Extremis Formula?" asked T'Challa.

"The Ten Rings is an underground group who seem to have something against the royal family" explained Blueblood "and the Extremis Formula was developed along with the serum that Blonksy took those years ago; however it was deemed too dangerous to test or destroy so it was locked away!"

"Looks like we may have to deal with them some time" T'Challa said shaking his head.

Twilight and Blueblood were now outside as they saw going towards them were Twilight's friends from Ponyville. Blueblood and Rarity both huffed as they shared eye contact with eachother.

"Twilight darling" they heard a female posh voice say, the group them saw the posh couple Jet Set & Upper Crust. Her friends then looked in confusion as Twilight had her cheek nuzzled by the couple.

"Twilight darling" it's been too long!" said Jet Set smiling "and first of all we are proud you got together with the Princess's nephew, nothing but loyalty is worthy of our goddaughter!"

"Goddaughter?" Twilight's five friends both said in confusion.

"Yeah Upper Crust & Jet Set are my and Shining Armor's godparents!" Twilight explained "they are old friends of my parents!"

"We remember seeing you at the party dear" said Upper Crust "but you can tell our embarrassment when we saw your dancing, I knew we should have stood our ground when we tried to talk your parents into giving you those dance lessons when you were a filly!"

They then heard a crash and saw several ponies in dark uniforms (including black full face masks) coming in. "Those are Ten Ring members!" Blueblood gasped out.

T'Challa was nearby and he nodded to his bodyguard who then took out a black case, he then opened the case which contained his Black Panther Suit. T'Challa then quickly put it on.

Twilight used the Pendant around her neck to transform into Ms Marvel, Fluttershy then transformed into the Ghost Flyer as the civilian ponies backed away to a safe distance.

Blueblood then activated 2 electronic cuffs on his hooves which sent a homing signal, and then from the Palace his Armour then came flying to him and then assembled on him.

"Let's get to work on these chumps Avengers!" Blueblood said as the Avengers then went into battle with the Ten Rings Soldiers.

There was a unicorn (as his horn was slowing in his mask) who seemed faster than the others and managed to jump onto Blueblood's back and punch his head sending down managing to damage Blueblood's helmet.

Blueblood managed to get up and scan the unicorn as he manages to fight off against T'Challa and Twilight.

"This pony has a signature similar to that of the stolen Extremis Formula" Said Blueblood "so whoever this Unicorn is the Ten Rings must have tested the Formula on him!"

The unicorn was hit by the Flames of Tartarus by Fluttershy causing his the upper half of his uniform and his mask to be ripped off. He was shown to be a silver mane unicorn with his mane fallen out, his eyes seemed out of focus as if he was crazy and his veins were visible red.

The unicorn then spotted Jet Set and then grinned, then going after him.

"Smart Set..." Jet then growled as he was hit by a spell from the now named Smart Set. The Ten Rings unicorns then used their magic to levitate the unconscious Jet Set as they then retreated.

"They got away!" Blueblood growled out, Twilight then went over to her godmother who was in tears.

"And they got my husband!" Upper Crust said who was now crying.

They were now in the Avengers base in the Canterlot Palace the Avengers were with Upper Crust. Blueblood was checking onto his computer and was now damaged Mark III Armor.

"I have analyzed the signature of the Extremis formula that this Smart Set had and I have located it to this secret base" said Blueblood "so that's where we can find the Ten Rings and rescue Jet Set!"

"The Mark IV is ready Mr Blueblood" said Blueblood's computer AI. Blueblood then smiled as he then had AI to assemble the Armor.

"We will get him back don't worry" said Twilight reassuring Upper Crust "but who's this Smart Set!"

"Jet's older brother..." Upper Crust managed to growl.

Jet Set woke up to find him in some black bodysuit with a red "W" on the front and he was in some sort of chamber. There was Smart Set above him smirking.

"'W' for worm, my idea" laughed Smart Set "what do you think brother?"

"What do you want?" asked Jet glaring at his sibling.

"How about the affection mother gave you but never gave me" sneered Smart Set "all her loved belonged to her favourite son- the wonder pony she called you! After I moved out of the house I joined the Ten Rings and they helped me live out some of my impulses! They even allowed me to try out the Extremis formula! It had a side effect of making me a little bit crazier! They have altered the formula with chemicals of their own design so the organisation can have their own Extremis Army and lucky you get to be the first test subject of this new improved formula!"

The lid of the chamber Jet Set was in then closed. The machine was then activated filling the chamber with the liquid formula and Jet Set's screams could be heard.

Then the Avengers barged through the wall, Blueblood was wearing the new Mark IV armour.

"Get them!" sneered Smart Set to the Ten Ring soldiers and they began to attack the Avengers.

Blueblood then targeted the computers in the base and the machine and sent mini-missiles from his armour that destroyed them.

"Those held the only copies of the Formula we had" one of the Ten Rings scientists gasped out loud "We can't make any more copies of the formula!"

Smart Set roared out in rage, he then tackled Blueblood though however he was putting up more of a fight thanks to his new improved suit.

One of the Soldiers used a weapon to send a beam of ionic energy to Fluttershy who dodged it which got absorbed by an energy panel of the machine Jet Set was in before it officially shut down.

Twilight then hurried to the machine and lifted the chamber door open to see Jet Set groaning, looking like he was going to melt into energy away.

Desperately Twilight used her pendant's healing magic onto Jet Set causing his body to seemingly stabilize itself. Jet Set got up and managed to hug Twilight.

Jet Set then saw to his shock he could turn his left hoove into ionic energy and back again. After carefully thinking he managed to turn his entire body into ionic energy. He also turned his upper hooves into hands and was standing on his back legs while standing like a human. He also managed to make himself grow.

He then managed to grab Smart Set and get him off Blueblood, Smart Set then gulped realising this angry pony was his brother.

Jet then threw his brother into the wall causing a self destruct alarm to go. The Pony Avengers then evacuated the building as the Ten Rings members including Smart Set also managed to escape.

Jet Set was being check over at the hospital with the Avengers, Twilight's parents, Shining Armor and his wife by his side. "It seems due to a miracle your sanity is intact and other than being able to become Ionic energy nothing seems to have been changed" said the doctor "Looks like you're going to be fine!"

"You must think I'm a freak now" Jet Set sighed to his wife.

"You're not a freak!" Upper Crust then said hugging her husband as Twilight and Shining then joined in hugging their godparents.

After they let go Blueblood said "well Mr Jet Set as leader of the Avengers, if you want in that is...there is a place for you on our team!"

Jet Set then looked to his wife who gave an encouraging smile. He then nodded with a smile on his own.

"What do you want to call yourself?" asked T'Challa. Jet Set then remembered what his brother said their mother used to call him and the 'W' on the suit he was still wearing.

"You can call me Wonder Pony!" said Jet Set smiling.

A white furred and purple maned unicorn wearing dark green robes and ten golden rings on his horn. He was Zhang Khan the leader of the Ten Rings group.

"So my plan of having Extremis powered soldiers failed and the only one of my minions who got the formula was defeated by the Princess's attack dogs!" sneered Zhang to himself "no matter I still have got my plans of domination!"

Smart Set is based on Mallen from Iron Man: Extremis and the marvel villain the Grim Reaper! Wonder Pony is a combination of the marvel hero Wonder Man & the MLP character Jet Set!