Well, it could be really epic. Aquaman could bring his underwater skills and connection to sea creatures to the Avengers' world. Maybe he helps them fight an enemy that is causing chaos in both the land and sea realms. For example, he could use his trident to create powerful water currents against a villain who is trying to pollute the oceans and use that pollution to gain power on land too. The Avengers, with their diverse powers like Iron Man's technology, Thor's lightning, and Captain America's leadership, would team up with Aquaman in an amazing show of cooperation.
A possible Aquaman and Avengers crossover fanfic could involve time - travel. Maybe an ancient evil from the past is awakened that once threatened both Atlantis and an old civilization on land that the Avengers are related to. Aquaman and the Avengers would have to travel back in time to stop this evil from ever being released. Aquaman could teach the Avengers how to survive underwater during this journey, and in return, the Avengers could introduce him to some advanced technology from the future that helps him in the fight.
Well, in a Harry Potter and Aquaman crossover fanfiction, we might see Aquaman's Atlantean magic interacting with Hogwarts' magic. For instance, the Sorting Hat might have a hard time sorting an Atlantean student brought by Aquaman. Also, Harry and his friends could go on an adventure to Atlantis with Aquaman as their guide, exploring the underwater world full of strange creatures and ancient magic.
The characters would have a very interesting interaction. For instance, Thor might be intrigued by Aquaman's trident as it has a similar kind of power to his hammer. They could compare their weapons and the magic or technology behind them. Iron Man would probably be fascinated by the technology in Atlantis and might try to adapt some of it for his suits. And Aquaman would have to adjust to the Avengers' more brash and direct approach compared to the more reserved ways in Atlantis. He might initially clash with Hulk due to Hulk's uncontrollable nature, but later find a way to work together, like using Hulk's strength to move large underwater structures.
Well, it could be like Merida joining the Avengers. Maybe she uses her archery skills to help them in a battle. For example, in a fight against some powerful alien invaders, Merida's precise shooting takes out key enemies, impressing the likes of Hawkeye and Black Widow. She could also teach them some wilderness survival skills that are useful during their off - base missions.
A Percy Jackson and Avengers crossover fic could be really exciting. Imagine Percy's water powers combined with Thor's lightning. They could create some really powerful elemental attacks. And the Avengers could be baffled by Percy's ability to talk to sea creatures. Maybe they'd team up to fight a common enemy like a new super - powerful Titan or a group of evil Asgardian - Greek hybrids.
A 'glee avengers crossover fanfiction' might involve the characters' unique abilities combining in unexpected ways. For example, Iron Man could use his tech to enhance the Glee club's stage effects. The Glee characters could introduce the Avengers to the power of music and performance to boost their morale. It could also be a story about how the two groups learn from each other's values, like the Avengers' sense of justice and the Glee club's unity through music.
In a 'batman and avengers crossover fanfiction', it could start with Batman being mysteriously transported to the Avengers' universe. He'd be a bit of a loner compared to the team - based Avengers. However, his intelligence would shine as he helps them deal with threats they've never faced before. For instance, against a new type of enemy that can't be defeated by brute force alone. Batman's utility belt and his ability to plan ahead would be crucial in such a crossover. He might even teach the Avengers a thing or two about being more strategic in their battles.
A 'Avengers Supergirl Crossover Fanfiction' might involve Supergirl's Kryptonian powers being a mystery to the Avengers at first. She could show off her super strength, heat vision, and flight, and the Avengers would be in awe. Then they'd start to strategize together. For example, Captain America would lead the group with his military tactics, while Supergirl uses her powers to do the heavy - hitting. And Hulk and Supergirl could have a fun interaction comparing their strength.
Well, it could be really cool. Maybe the heroes from Boku no Hero Academia and the Avengers would team up to fight a common super - villain. For example, All Might and Captain America could lead the charge, with their strong sense of justice and leadership. The quirks of the BNHA characters combined with the powers of the Avengers would make for some epic battle scenes.
It could be amazing. Maybe Percy uses his water - controlling powers to help the Avengers during a flood - like attack in New York. He could team up with Thor, who also has powers related to a natural element. They'd make a great duo fighting off villains.
A 'Avengers Game of Thrones Crossover Fanfiction' would be a wild blend of two very different universes. For instance, Doctor Strange could use his magic to travel between the Seven Kingdoms and other dimensions. Hawkeye might find himself in the middle of a hunt in the forests of Westeros, using his archery skills to survive. The Avengers' advanced technology and superpowers would disrupt the medieval - like world of Game of Thrones, and at the same time, the political and moral complexities of Westeros would test the Avengers in new ways.