A cool plot might be that a new villain emerges who has the power to steal the powers of superheroes. This villain targets both Ben's aliens and the Avengers. Ben and the Avengers have to work together to not only stop the villain from stealing more powers but also find a way to get their powers back. Ben's knowledge of his Omnitrix and the various alien weaknesses could be crucial in devising a plan, while the Avengers' combat experience and teamwork skills would be invaluable in facing the challenges along the way.
Definitely Ben Tennyson and Iron Man. Tony Stark's high - tech gadgets and intelligence would pair well with Ben's Omnitrix. They could exchange knowledge about technology and come up with some really cool inventions together. Also, Iron Man could probably upgrade the Omnitrix in some way.
A major theme is the clash of cultures. Ben 10 comes from a more science - fictiony world with his alien forms and gadgets, while the Avengers are from a more traditional superhero world. Fanfictions often explore how these two different worlds' values and ways of doing things interact. For example, Ben might approach a problem in a more alien - like way that the Avengers have to adapt to. There's also the theme of acceptance, as the Avengers have to accept Ben as a valuable ally despite his different origin and powers.
One great 'Ben 10 Ben x Gwen Fanfiction' is 'Parallel Bonds'. It explores their relationship in an alternate universe where they have to work together against a new kind of enemy. The story is full of action and also delves into their emotional connection.
One great Ben x Kevin fanfiction could be about their adventures in a parallel dimension. In this story, they might face new aliens and challenges that test their friendship even more. Maybe they find a powerful alien artifact that only works when they combine their unique abilities, leading to a deeper understanding of each other.
In a Ben 10 Avengers crossover fanfiction, the story might involve Ben and the Avengers sharing their technology and knowledge. Maybe Iron Man could upgrade some of Ben's alien tech, while Ben could show the Avengers some unique alien abilities they've never seen before. It could also lead to some interesting character dynamics, like Spider - Man and Ben comparing their powers and how they use them to protect the city.
In some fanfictions, there might be a plot where the Avengers mistake Ben for a threat at first. But then they realize his good intentions when he helps them fight a common enemy. This adds an element of misunderstanding and then friendship, which is quite common and engaging in crossovers.
In some fanfictions, the technology in Ben 10's world might be combined with Stark's technology in the Avengers. Maybe Ben's Omnitrix could be enhanced by Stark's knowledge, creating a more powerful device that helps them in a battle against an alien invasion. This would involve a lot of scientific discussions and teamwork between Ben and the Avengers, especially Tony Stark.
One common theme is growth. Both Ben and Gwen grow as individuals and in their relationship. Another theme is friendship, as their bond is often a central part of the stories. Adventure is also a big theme, since they are from the Ben 10 universe and usually go on exciting adventures together.
Well, let's consider Ben's alien form that can absorb energy. When combined with Hulk's raw power, they could create a situation where the alien absorbs Hulk's excess energy during his rage - filled moments. This would not only prevent the Hulk from causing too much destruction but also use that absorbed energy to power up the alien form for a more powerful attack. And in the case of Black Widow, Ben could transform into an alien with enhanced agility and stealth, and together with her combat skills, they could infiltrate enemy bases more effectively.