Imagine that in the Resh umbrella world, there is a powerful weapon that could potentially destroy the entire multiverse if it falls into the wrong hands. The Avengers are somehow alerted to this threat. They cross over into the Resh umbrella world. There, they meet characters from Resh umbrella who have different motives. Some want to use the weapon for power, while others want to destroy it. The Avengers have to navigate this complex situation, make allies among the Resh umbrella characters, and ultimately prevent the weapon from being misused.
The characters from Resh umbrella might be initially in awe of the superpowers of the Avengers. For example, Iron Man's high - tech suit would be a wonder to them. Meanwhile, the Avengers might be a bit cautious of the Resh umbrella characters as they come from a more shadowy and secretive organization. But they would soon realize that they have to work together and start sharing their skills and knowledge.
One idea could be to have characters from different universes meet under the Resh umbrella. For example, a character from a fantasy world and a character from a sci - fi world could find themselves taking shelter under the same Resh umbrella during a strange interdimensional storm.
Begin with brainstorming the significance of the Resh umbrella in your fanfiction. Is it a magical item? A technological wonder? Once you've determined that, think about the characters from different stories you want to bring together. Sketch out a basic plot where the umbrella acts as the catalyst for their meeting. For example, if you're doing a crossover between a post - apocalyptic world and a magical realm, the umbrella could be the key to opening a portal between the two desolate and fantastical places.
Well, it could start with some sort of interdimensional rift that sucks members from both groups into a shared space. The Avengers would be all about order and protecting the world in a more traditional heroic way, while the Umbrella Academy is a bit more dysfunctional. So, there'd be a lot of bickering at first. But when they realize they're up against a powerful alien force or something, they'd start to work together. Like Vanya's powerful sound waves combined with Thor's lightning could be a really cool combo.
Definitely Five and Tony Stark. Five is a time - traveling genius, and Tony is a brilliant inventor. They'd either be at each other's throats competing to come up with the best plan, or they'd team up and create some amazing tech. Another interesting pair would be Klaus and Thor. Klaus's laid - back, drug - addled attitude would be a stark contrast to Thor's godly seriousness. It would be hilarious to see how they interact.
One of the most interesting crossovers is the one that focuses on the family dynamics. The Umbrella Academy has its own complex family relationships, and the Avengers also have their own kind of 'found family' dynamic. When these two aspects are combined in a fanfiction, it can lead to some really emotional and thought - provoking moments. For example, when Captain America tries to give some leadership and family - like advice to the Hargreeves siblings, or when Diego tries to teach Hawkeye some new combat moves based on his own unique fighting style.
One common theme is the clash of different powers. For instance, when the Umbrella Academy crosses over with another universe with superpowered characters, there's always a comparison and sometimes a struggle between different types of powers.
One idea could be that Godzilla is drawn to the energy source of one of the Avengers' tech, like Stark's Arc Reactor. This causes chaos as Godzilla approaches the city where the Avengers are based. The Avengers initially see Godzilla as a threat and try to fight it. But then they realize that an even bigger alien force is using Godzilla's presence as a distraction. So, they have to find a way to communicate with Godzilla and work together to defeat the common enemy.
One idea could be that Nightwing is transported to the Avengers' universe through some sort of interdimensional rift. He then has to team up with the Avengers to fight a common enemy, like Thanos who has somehow acquired some of Batman's tech. Nightwing's acrobatic skills and detective abilities would be a great addition to the Avengers' power set.