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.
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.
Well, in a fanfiction scenario, the immortal Percy Jackson could bring his demigod powers to the Avengers' world. Maybe his water - controlling abilities could help in battles against villains who use fire - based attacks. For example, against a foe like Ultron, Percy could douse his mechanical parts and disrupt his systems.
Well, one way their worlds could collide is through a common enemy. Maybe some ancient Greek monster has found a way into the modern world of the Avengers. Percy, with his water - controlling powers and combat skills, could team up with Thor, who also has power over a natural element. They would make a formidable duo against this threat.
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.
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.
Most likely, the main characters would be the Avengers we all know, like Iron Man, Captain America, Thor, etc. But since it's about two worlds colliding, there could also be new versions of these characters from the other world.
In this fanfiction, heroes from different universes might meet. Maybe the Avengers from one world encounter their counterparts from another dimension. It could lead to a lot of chaos as they try to figure out who is who and how to work together.
Crowley might initially be intimidated by the Avengers' powers. He could be in awe of Thor's lightning or Hulk's strength. However, being the sly character he is, he would soon find a way to use the situation to his advantage. He might try to make a deal with one of the Avengers, like Black Widow, who is used to dealing with morally grey areas. But she would likely outwit him in the end.
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.