Well, consider a situation where an old enemy of Deadpool's teams up with a new threat against the Avengers. Deadpool, initially on the sidelines, realizes that his own survival depends on the Avengers' success. So, he decides to offer his 'help'. However, his methods are so unorthodox that the Avengers are constantly second - guessing whether to trust him or not. This creates a lot of tension and comical moments within the story as they try to work together against the common foes.
One idea could be Deadpool trying to join the Avengers in his own wacky way. He might show up unannounced at the Avengers Tower, causing chaos and confusion among the team members. Another plot could involve Deadpool being hired by a villain to disrupt the Avengers, but then he has a change of heart halfway through. Or perhaps Deadpool accidentally travels to an alternate universe where the Avengers are very different, and he has to find a way to get back while also dealing with this strange new team.
One idea could be Deadpool trying to join the Avengers in his own zany way. He might show up at the Avengers' headquarters with a bunch of crazy gadgets and a self - made resume full of his 'accomplishments' that are half - heroic and half - insane.
One idea could be Deadpool trying to join the Avengers but constantly annoying them with his non - stop chatter and crazy antics. For example, he could keep interrupting their strategy meetings with his own hare - brained plans.
A possible plot could be that the Avengers are on a mission to retrieve a powerful artifact. Deadpool, who has his own reasons for wanting the artifact, also shows up at the same place. Instead of fighting each other, they form a temporary alliance. Deadpool's knowledge of the underworld and his unpredictable fighting style, combined with the Avengers' superpowers, help them overcome the various traps and enemies guarding the artifact. However, after getting the artifact, they have to decide what to do with it, which leads to some internal conflict among the group and more hilarity with Deadpool's input.
One idea could be Deadpool getting dropped into the RWBY universe and thinking it's some sort of crazy new mission. He starts trying to team up with the RWBY girls, but his chaotic nature constantly causes misunderstandings. For example, he might mistake a Grimm for one of his usual foes and go after it in his own wacky way, much to the confusion of the RWBY characters.
One idea could be that they team up to take on a new super - villain who has the ability to manipulate time. Deadpool's unpredictability and Spiderman's quick thinking would make for an exciting combination in this scenario.
One idea could be a crossover with the Doctor Who universe. The Avengers could team up with the Doctor to fight a common enemy that threatens both their universes. Maybe Thanos somehow gets access to Time Lord technology and the combined forces have to figure out how to stop him from using it to rewrite all of reality.
A cool plot could be that Wolverine's past comes back to haunt him during an Avengers mission. His time in Weapon X could be related to the new threat the Avengers are facing. So, the Avengers have to help him deal with his demons while also fighting the enemy. Or perhaps Wolverine discovers a connection between a mutant he knew and an Avenger, which leads to a mystery they have to solve together.
One idea could be a crossover with the Harry Potter universe. The Avengers could visit Hogwarts and interact with the wizards. Maybe Iron Man tries to understand and even improve their magic technology. Another could be a crossover with the Star Wars galaxy. The Avengers team up with the Jedi to fight against a common threat like Thanos and the Sith Lords combined.
A great plot could be that Batman, being the master detective, discovers a plot by some unknown force that is targeting both Gotham and the Avengers' main cities. He contacts the Avengers for help. They initially have some trust issues as Batman is a loner and the Avengers are used to working as a team. But as they start to understand each other's methods, they combine forces. For example, Batman's stealth and strategic skills combined with Captain America's leadership and combat skills could make for some really cool fight scenes against the common enemy.
One idea could be that the Avengers are facing a supernatural threat that they can't understand. So they seek the help of the Winchesters from Supernatural. The Winchesters introduce them to the world of the supernatural, like demons and ghosts. And together they combine their skills, the Avengers' superpowers and the Winchesters' hunting knowledge to defeat the threat.