Well, in such a crossover, Steven could use his gem powers to help the Avengers in battles. Maybe his healing powers could be used on the injured Avengers. For example, after a tough fight with a powerful villain like Thanos, Steven could heal Captain America's wounds.
One possible scenario in this crossover fanfiction is that the Avengers initially don't trust the Crystal Gems because they are so different. But as they face a common enemy, they start to work together. Steven and the Gems could introduce the Avengers to new dimensions and different forms of energy. And the Avengers could show the Gems how to better strategize in large - scale battles against powerful foes.
Well, it could be really cool. Maybe the Gems would be intrigued by the technology of the Omnitrix. Steven might try to understand Ben's powers better and see if there are similarities between his gem powers and Ben's alien forms. And Ben could learn about the Gem culture. They could also exchange stories about their adventures and how they protect their respective universes.
He would probably have a very mixed reaction. On one hand, seeing how fans view his world and his story could be really cool. He might enjoy seeing different versions of himself and his friends. However, if there are inaccuracies or things that go against his values in the fanfiction, he could also be a bit put off. It really depends on the nature of the fanfiction he's reading.
Steven himself would be very interesting. His kind - hearted nature and unique powers would stand out among the Avengers. He could bring a new perspective to the team.
A fanfiction could involve a crossover where the Avengers are shrunk down to the size of the Gems in Steven Universe. They have to adapt to this new world and its rules. For example, they might have to learn how to use Gem weapons and powers. In return, they could teach the Gems about human combat techniques that are different from what the Gems are used to. This would create a lot of humorous and action - packed situations.
A possible plot twist could be that one of the Avengers, say Hulk, is actually a long - lost Gem. His transformation into the Hulk could be related to some dormant Gem power within him. This would completely change the way the other Avengers and the Crystal Gems view him.
One popular crossover is having the Crystal Gems from Steven Universe team up with the Avengers to fight a common enemy. For example, they could battle a powerful alien threat that neither group could handle alone. The unique powers of the Crystal Gems, like Garnet's future vision and Steven's healing powers, combined with the Avengers' superhuman abilities would make for an exciting story.
A 'Naruto meets Steven Universe' fanfiction could start with Naruto accidentally ending up in Steven's world. He'd be shocked by the colorful and strange environment. Steven would be the first to approach him, being the friendly and curious character he is. Naruto would quickly show his combat skills, which would amaze Steven. The Gems might be a bit more cautious at first. But as they learn about Naruto's good intentions, they start to work together. They could share their knowledge of different forms of magic or power. Naruto could learn about gem - based powers and how to use them in combination with his chakra. And they could all go on adventures to protect both their worlds from new threats.
A crossover could start with Steven somehow getting his hands on a piece of Voltron tech. This could be something that fell through a wormhole. His curious nature would lead him to try and figure out what it is. Meanwhile, the Paladins of Voltron are on a mission to retrieve this tech. When they arrive in Steven's world, they are shocked to find a world full of Gems. The two groups could then learn from each other's powers and ways of fighting.
A Markiplier and Steven Universe crossover fanfiction could be really interesting. Maybe Markiplier's character could end up in the world of Steven Universe. He could interact with the Crystal Gems, and his comedic and often chaotic personality would create some really fun and unexpected situations. For example, he might try to help Steven with his gem powers in a very unorthodox way that would make everyone laugh.
One plot idea could be that Markiplier's character is a lost traveler who accidentally lands in the Steven Universe world. He is mistaken for a new type of gem at first. The Gems try to figure out what he is while he is just trying to find a way back home. But as time goes on, he starts to care about the Gems and their cause, and decides to stay and help them against the Diamonds.