The combination of powers. You get to see the superpowers of the X - Men, like Jean Grey's telekinesis and Cyclops' optic blasts, interact with the powers of the Avengers such as Thor's lightning and Captain America's super - strength. It makes for some really epic battle scenes.
One great 'xmen and avengers crossover fanfic' is 'The United Front'. It has an exciting plot where the X - Men and the Avengers have to team up against a common enemy from another dimension. The character interactions are really well - written, especially the banter between Wolverine and Iron Man.
In a dark Gotham alley, Batman is on patrol when a strange web shoots across his path. Out of the shadows emerges Spider - Man. 'Hey, Bats! Heard this city could use some help.' Batman, initially cautious, realizes they could work together. They team up to take on a new villain who has a blend of high - tech gadgets and super - strength. Spider - Man's quips lighten the mood as Batman strategizes. Together, they swing and glide through Gotham, finally defeating the bad guy.
One common theme is the exploration of power dynamics. When the X - Men cross over with other groups, like the Avengers or the Fantastic Four, there's always a comparison and contrast of their powers. For example, in a crossover with the Avengers, the mutants' powers might be seen as more unpredictable compared to the technology - based powers of some Avengers.
One possible fanfic could start with Spiderman being transported to the Destiny universe. He might be confused at first, seeing all the strange alien landscapes and advanced technology. Maybe he teams up with a Guardian to fight off the Fallen. He uses his web - slinging abilities to navigate the complex terrains of Destiny's planets, while the Guardian provides firepower. Together, they become an unstoppable force, protecting the innocent in this new and dangerous world.
One way a Spiderman x Artemis fanfic could start is with Spiderman swinging through the city and suddenly getting zapped into Artemis' realm. He's confused at first but then realizes he has to work with Artemis to get back home. Along the way, they start to respect each other's abilities and form an unlikely friendship. They might even combine their powers to defeat a villain who is trying to disrupt both their worlds.
One possible story in a Spiderman x Deadpool Homecoming fanfic could be that Deadpool decides to crash Peter Parker's Homecoming dance. He shows up in his usual flamboyant style, causing chaos and confusion among the students. Spiderman has to both keep his identity a secret and deal with Deadpool's antics. It could be a really fun and comical take on the Homecoming event, with lots of banter between the two characters.
A batman and spiderman crossover fanfic could be about them teaming up to fight a common enemy like the Joker and Green Goblin who have formed an alliance. They would combine their unique skills, Batman's detective skills and martial arts with Spiderman's agility and web - slinging.
One idea could be a Spiderman and Iron Man crossover. Spiderman could team up with Iron Man to fight a new, powerful villain. Maybe they have to combine their tech and skills, like Spiderman using his web - slinging abilities along with Iron Man's high - tech gadgets to take on an enemy who can manipulate electricity.
Another possibility is that there is a villain who is stealing technology from Stark Industries (where Spiderman sometimes gets his tech) and ancient artifacts from Wonder Woman's homeland. They are both independently investigating and then cross paths and decide to work together to stop the thief.