"It doesn't make sense," Rin said looking at the readings Albedo showed him.
"Why are Omnitrices being stolen through the Omniverse?" He asked his friend.
"I don't know." Albedo said, "But the readings indicate that our universe may be next."
"We need to meet with Ben and stop whatever dictator or terrorist that's doing this," Rin said.
They transformed into Big Chill and flew towards the suburbs where Ben lived. When they got close to the neighborhood they saw an explosion in the middle of the street. They landed and when the smoke settled they saw distinct figures. On one side they saw Ben as Humungosaur after maximizing his height, on the other side they saw a Celestialsapien with eleven different Omnitrx badges on his(?) body.
They landed next to Ben and shifted into Ultimate Humungosaurs.
"Ben," Rin began like a scolding mother, "Are you trying to outmuscle a god?"
"This thing's a god?" Ben asked after hitting the Celestialsapien away with his tail.
"Technically yes," Albedo said, "But he seems to be one of the less intelligent members of his species." Albedo said as the Celestialsapien used telekinesis to throw rocks at Rin who just destroyed them with Bone-Missiles.
"I am Alien X and I have beaten ten versions of Ben Tennyson and taken their Omnitrices, this one will be no different, plus I will get two Ultimatrixes to add to my collection.
Rin counted 11 Omnitrices on Alien X's body and instantly knew what was going on.
"You're just a disgruntled Ben who hates the concept of teamwork because his Max and Gwen got killed," Rin said, "Am I anywhere in the ballpark?"
Alien X's eyes narrowed and the three could feel his anger as if it was a physical presence.
"Ha! Knew it!!" Rin yelled in victory before being flung back by an energy blast. He got up and Alien X waved his hand tearing a hole in the Omniversal fabric of reality. Alien X floated through the portal and it disappeared before anyone could do anything.\
"We have to follow him," Rin said as he transformed back to normal.
"How?" Ben asked, "None of us can turn into that thing.
"Actually," Rin began, "Albedo and I both can."
"Why haven't you two been using that form all the time?" Ben asked, "You would be unstoppable."
"Well for one, the multiple personalities of a Celestialsapen must vote for all of their actions to be performed, with at least a fifty-one percent agreement rate. Albedo's other personalities in the form, Kursika, and Annikus hate him because he didn't honor a deal."
"What about your personalities?" Ben asked.
"They don't like me much," Rin said, "I tricked them into letting me take full control of Alien X and became a dictator for a few months. Though they would be more likely to help than Albedo's."
"It's worth a shot to stop this evil me," Ben said.
Rin sighed and grabbed a key on a small metal chain around his neck and inserted the key into the Ultimatrix Faceplate.
"If I don't turn back in five minutes turn the key counterclockwise." Rin turned the key and transformed in a bright blue flash.
____________________________________________________________________________________________
(In Rin's mindscape)
Rin opened his eyes and gazed upon the two giant, pure white faces of Elina, the voice of compassion and reasoning, and Manik, the voice of Rage and Vengence.

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Ben 10 and the Ultimatrix user
Fanfiction(This story is how I would write Alien Heroes by @Sovereign343 the credit for the idea goes to him I just wanted to write it in my way. This is also somewhat co-written by @BenCowden2 for all the help and inspiration he has given me.) Ben, Gwen, and...