Maybe there is a common enemy that exists in both their worlds. This enemy could be a powerful being that has the ability to travel between dimensions. Spider Man discovers that there are strange disappearances in New York that seem to be related to something otherworldly. Meanwhile, Proxima is on the hunt for a being that has caused chaos in her world. Through a series of events, they both realize that they are after the same foe. This would force them to put aside their differences and combine their powers to take on this mutual enemy.
Fanfictions sometimes create scenarios where Spider - Man from 'Homecoming' has to prove himself to the established Avengers. His youth and inexperience contrast with the more seasoned heroes. This can lead to interesting character development arcs, such as him learning from the Avengers' combat strategies and they in turn learning from his unique approach to fighting crime on a smaller scale.
One possible interaction could be a battle. Spider Man, with his acrobatic skills and web - shooting abilities, would face off against Proxima, a powerful warrior. Proxima might be initially dismissive of Spider Man, seeing him as a mere Earth - based hero. But Spider Man could use his quick thinking and the environment to his advantage. For example, he could swing around the city and lead Proxima into a trap of his own making, like luring her into a narrow alley where her long - range attacks are less effective while he can use his webs to immobilize her.
If we consider their worlds colliding, Gotham's dark and gritty streets would be a strange place for Aphrodite. Batman's world is full of crime and despair, while Aphrodite is from a world of beauty and love. But perhaps Aphrodite would be drawn to Gotham to try and spread her love and change things. Batman would initially be skeptical but might come to see the value in her approach as she starts to have an impact on the villains and the overall mood of the city.
Their worlds could collide if a powerful and mysterious villain starts operating in both Gotham and the territory related to The Crow. This villain might be using Gotham's resources for some dark ritual that also affects The Crow's realm. Batman would be on the case in Gotham, and The Crow would sense the disturbance in his own world, leading them to cross paths.
Their universes can collide in fanfiction through interdimensional portals. Maybe a scientist in the Marvel universe accidentally creates a portal that links New York (Spider - Man's territory) and Wakanda (Shuri's home).
Well, if Naruto's world and the world of Danmachi with Freya collided, it could be really chaotic. Naruto's ninja skills like shadow clones and rasengan would be quite a shock to the adventurers in Danmachi. And Freya, with her charm and divine powers, might see Naruto as an interesting new being. Maybe Naruto would be mistaken for a powerful adventurer at first, and his determination to protect and his never - give - up attitude could inspire the people in the Danmachi world.
If we consider the cultural differences between the two worlds, it would add an interesting layer to the fanfiction. The Avengers are from a modern, Western - influenced world where science and reason are highly valued. Magnus Chase's world is steeped in Norse mythology and ancient traditions. When their worlds collide, there could be misunderstandings at first. But as they get to know each other, they could learn from one another. The Avengers could learn about the power of magic and ancient wisdom from Magnus, and Magnus could learn about the power of teamwork and modern technology from the Avengers.
Their worlds could collide through a portal. A mysterious portal could open up between Gotham and Themyscira. Batman, being the curious detective, would investigate and end up in Hippolyta's domain. This would lead to immediate tension as the two different cultures and ways of life come face - to - face.
In fanfiction, their worlds might collide if a Gotham criminal hides out near the Addams Family's mansion. Batman would follow the trail and end up in their spooky territory. The Addams Family, being who they are, might initially mistake Batman for an intruder or a new form of entertainment. But once they realize his purpose, they could offer their help in their own strange way. For example, Pugsley could use his explosive - making skills to create distractions for the bad guys, while Batman does his stealthy takedowns. This combination of the dark and brooding Batman world with the kooky and spooky Addams Family world would make for an exciting story.
Culturally, there would be a huge clash. The Avengers are from different parts of Earth, with different values and beliefs. Crowley, on the other hand, comes from a world of demons and magic. His actions and motives would be completely foreign to the Avengers. For example, Crowley's casual attitude towards death and destruction might horrify the Avengers, who are dedicated to protecting life.