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Marvel's Omnitrix [A Ben 10 x Marvel Isekai]
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MatureOngoing28h 36m
Last published Sun, Apr 12, 2026
Reborn as Ben Tennyson in a world merging Ben 10 and Marvel, an 18-year-old's summer road trip becomes an epic adventure when he discovers the Omnitrix.
With memories of his previous life about both universes suddenly emerging in his head, he must navigate threats from Vilgax's bounty hunters to Thanos' inevitable snap. Despite the galactic dangers thrown at his face, he was always ready, and always geared a notch above.
It's Hero Time!
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Hero Time
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The Second Hero [Ben 10 x OC]
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Ben 10: My Hero Academia - Season 3
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Ben Tennyson, a seemingly ordinary fourteen-year-old boy, was granted immeasurable power from outer space. This power granted him extraordinary abilities that would catapult him into adventures of epic proportions, carrying the mantle of the universe upon his shoulders. However, his unexpected traveling companions don't entirely share that perception; they just want something more with Young Tennyson. This is a loose interpretation of the Ben 10: Chaquetrix AU, created by @TrixTheAlien on Twitter/X. You can find all the illustrations on my Twitter, @BlueWolfArtista.
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(y/n) (l/n), a 10 year old boy, is going a summer roadtrip with his mother and father, and his cousin. That is until his summer gets more exciting and intense, as he soons finds a device called the Omnitrix, a device that lets him transform into 10 different aliens. (y/n) will face many challenges and villains as this will be one summer vacation he will enjoy.
THE INCREDIBLE BEN 10!!!
ben tennyson has been through so many adventures during his summer vacation ever since he layed eyes on the most powerful device in the universe omnitrix! ben's learnt alot during his time on summer vacation with his grandpa max and cousing gwen tennyson and returns back home when summer vacation end and still fights bad guys with his grandpa max and gwen. but vilgax returns for revenge on ben 10 for throwing him across the cosmos as way big. their fight was brutal across bellwood that it ends with a bloodlusted ben 10 brutally killing vilgax tragically killed gwen to break ben....and it did. after that day, ben left his family, abandoned bellwood and became a runaway jumping city to city stopping crime and bad guys along with saving lives over the years now as a teenager ben 10 was about to stop a alien weapons deal going down until he sees kevin 11 there much to him and kevin's surprise and they get sucked into the universal teleporter because of it. now ben 10 finds himself in a very different universe where heroes have become illegal and now lives with a family of supers the parrs, ben will face many challenges from both his universe and the one he's in along with protecting the parrs who adopted him becoming a part of their family as ben becomes involved with mr incredible wanting to relive his glory days as a superhero. watch as ben 10 builds himself back up facing his trauma and the loss of gwen, facing off against syndrom, screenslaver so much more villains to come alongside becoming friends with kevin 11.
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Ten-year-old Ben Tennyson and his best friend (Y/N) (L/N) discover two mysterious devices, the Omnitrix and Ultimatrix on their summer vacation. The devices allow them to transform into ten different alien forms replete with unique superpowers. While (Y/N) has the additional functionality to turn his aliens into their most powerful form, going from hero to Ultimate
It started when an alien device did what it did. It stuck itself upon his wrist with secrets that it hid. Now he's got super powers, and he's using them to fight alongside earth's mightiest hero's. *Disclaimer: I do not own Ben 10 or The Avengers. Ben 10 belongs to Man of Action and Warner Bros and The Avengers are owned by Marvel Comics and Disney. There are also elements and alien transformations that come from the comic series 5 Years Later, which belongs to The Ink Tank. Lastly, all the pictures and art within the story do not belong to me and instead belong to their respective owners.* All characters are 18 years of age and above
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