Shortly after the Chitauri invasion in New York another globally affecting incident occurs, one that Fury manages to keep under wraps however. Nanites are spreading around the world at a slow rate and turning some organisms into EVOs. The only known cure: Rex Salazar

When a cybernetic aliens which seek the conquest the entire multiverse. Mighty Heroes banded together Ben Tennyson, Zak Saturday, Rex Salazar, Danny Phantom, Kim Possible ,Ron Stoppable, Randy Cunningham, Jake Long, Max Steel, Ladybug, Cat Noir, Jenny Wakeman, Steven Universe, El Tigre, Star Butterfly, Marco Diaz, Lance, Ilana and Octus. To defeat the Darkenstors.

It's been 2 years after the Nanite Event, from when Rex cured the world, but it wasn't going to last forever. Everyone still have nanites, and they will activate again, as EVOs will appear once more. During a mission, Rex cures an EVO that turns out to be a beautiful girl, and said girl will drag Rex into a world he thought was unreal.

Clashing with a watch wearing, alien hero from a parallel world was one thing. Having his mysterious girlfriend get caught up in the mix was another matter entirely ... (Heroes United AU with Ben x OC. Mature themes involved so Ben, Rex and G; my OC, are all like 16-18).

This is a story inspired by an idea I saw on youtube, by Plus Ultra Man, where Izuku would have Nanites as his quirk. Although I made some minor changes to their story, and that will have the butterfly effect. Please give it a read.

A new portal in the middle of the desert? Not otherwise, as Ben decided to return. But why? Did Alpha get out of the shell or did a new threat to all universes appear and he can't cope without me? Well, it's time to find out. Wait... A girl fell out of the portal?

Ben finds himself in another world that's practically empty outside of the occasional bad guy, but is quickly found by a guy named Rex with extraordinary powers and his hooded partner who doesn't talk a lot. Together, they have to uncover the mystery of how they all got there and unlock a way out of the desolate city. (Reboot Ben, Ben UAFO/Rex, humor and family dynamics, scifi)

When Van Kleiss steals the Omega, Rex is forced to make a difficult compromise One that doesn't immediately pay off. (Up for adoption.)

Rex Salazar has cured his world of Evos and the world had been quiet after his God moment. But after encountering Van Kleiss again, he wakes up in a strange new world where there's no Evos, Van Kleiss, or Providence, and he doesn't know how he's going to handle it. Will Rex be able to overcome this new world and will he be able to handle a certain group of huntress's in training.

after three mysterious people send a strange pod to a new dimension, Izuku Midoriya finds it, and gains some new powers. this is also a crossover of Ben 10 too, but you can only select two franchises.

Izuku Midoriya's life is hard. his parents are dead, he's quirkless, and giant monsters keep showing up. when Izuku manifests some strange new powers, will he become a pro hero, or will his past hold him back?

When Rex Salazar is sent to investigate mysterious earthquakes in the town of Summerville, Oklahoma, he meets a few friends of his who had recently been evicted from their apartment in New York and forced to move into an abandoned farmhouse left to them by one of their relatives and slowly, they discover connections they have to the original Ghostbusters. SPOILERS FOR GB:AFTERLIFE

When Eon takes a special interest in Rex's corner of the multiverse, he teams up with his inter-dimensional ally: the Great Ben Tennyson. With some help from an alternate version of Ben's cousin armed with her own Omnitrix, these three are the last line of defense against cosmic destruction. Crossposted to A03. Formatting issues fixed.

what if rex Salazar was put into the works of my hero

Nueva York, la plaga EVO esta atacando mas fuerte que nunca, pero la agencia paraestatal PROVIDENCIA tiene a su mejor arma, Rex Salazar, quien puede curar a los EVOS siendo el mismo uno de ellos y a Mérida la Arquera Roja, una agente habilidosa con el arco y la flecha. Ellos enfrentaran juntos cualquier peligro que venga, pero, que sucede cuando el peligro no son solo los Evos?

Rex tried to stop Breaches time machine but fails and ends up in the past. But is he really in the past. With monstrous beasts running around, snipers, transforming people, and a crooked capital in this timeline, Rex can't help but wonder, is he real stuck in the past. And whats is secretly happening in this empire. Its the future vs the past. Who will win?

How a system made the most interesting person in the world.

THIRD STORY: When an alternate world is threaten, Ben and Rex must unite as one to travel to this world and defeat the likes of an ultimate enemy that even they haven't faced... themselves. WARNING: includes some death and intense violence. Special guest Matthew from the Hybrid series included.

Instead of Breach’s portal sending Rex forward in time, it connects to another’s portals. Causing the two EVOs to end up at the USJ. One-shot. May become full fic. Crossposted on Ao3

So, I never expected any of this to happen. It really did all start with a trip to a grocery store. Maybe it started further back when I made friends with a talking racoons. Either way, my name is Jaune Arc, and I have made the best worst decision of my life; to become a huntsman.

"All I wanted was to live. Father has denied me that right in his world. Perhaps this one would allow it." - That though drove Alpha to the world of heroes. Now with a new host, he might have a chance at more than just life.

The Team is a covert ops team, typically sent on mission where there's no backup. They're fine as they are but they lack a dedicated tech head. Good news: They found one. Bad news: He's a bit of an ass with some trust issues. Did I mention that he also has his predecessor stuck in his head? Or that his predecessor is from another dimension? Bad summary I know.

Au from episode 4. Betrayed by Providence Rex leaves and joins the CIA in search of a new life. When a friend is killed Rex joins a group only spoken of in whispers. Two years after leaving Providence a mission brings former allies together once more. Possible Rex/Six later

some time later nanites turned back on one strange event later Rex finds three little fillies and two older mares. Now he has to protect them figure out what happened? why they can't Remember what happened? and deal with the normal headaches.

When all of existence needs saving Professor Paradox will recruit heroes from different universes in fact from different multiverses to save it all!