One great storyline could be where Arrow and Batman team up to take on a common enemy like Ra's al Ghul. Arrow's skills with the bow and his street - level fighting ability combined with Batman's detective skills and high - tech gadgets would make for an exciting adventure. They could start off as rivals, not fully trusting each other, but as they face the challenges set by Ra's, they learn to work together and respect each other's methods.
One idea could be Batman coming to Star City to help Arrow deal with a new, extremely dangerous criminal organization that has ties to Gotham. This could lead to some great fight scenes as they combine their skills and resources.
Arrow is a hero who has grown from a playboy to a more serious protector of Star City. He has a sense of humor that is a bit darker and more sarcastic. Batman, while also having a dark side, is more stoic. Their different personalities could create some humorous moments in a crossover. For instance, Arrow might make a sarcastic comment about Batman's overly - serious approach, which could break the tension in a difficult situation. And while they might seem at odds initially because of their different ways of handling things, they would eventually realize that their combined efforts, with their unique personalities, are what will be needed to save the day.
One idea could be that Batman and Arrow team up to take on a common enemy like Ra's al Ghul. Since both of them have had run - ins with him in their respective storylines, it would be cool to see them combine their skills and resources to fight against him. Another plot could involve a mystery that spans both Gotham and Star City. Maybe there's a new criminal organization that's using technology from both cities to carry out their evil plans, and Batman and Arrow have to figure out how to stop them while also dealing with the differences in their methods of crime - fighting.
Ra's al Ghul would be a great choice. He has ties to both the Arrow universe and Batman's world. He could be manipulating events in both Star City and Gotham, forcing Arrow and Batman to team up to stop his grand scheme. His immortality and vast resources would pose a huge challenge for them.
Alfred Pennyworth could be included. He could offer his wisdom and support to both heroes. Maybe he even has some insights about the similarities and differences between Gotham and Starling City. Another character could be Felicity Smoak. She could help with the tech - related aspects of the case they are working on together.
A great plot could involve the two heroes swapping cities for a while. Arrow tries to deal with Gotham's crime underworld while Batman goes to Starling City to investigate a series of strange disappearances that might be linked to a powerful criminal organization there. This would lead to both heroes having to adapt to different environments and crime - fighting styles.
The theme of redemption can also be found. Maybe one of the characters has made a mistake and the other helps them see the right way. For example, if Arrow has gone too far in his methods, Batman could be the one to bring him back. It's about how they can learn from each other in that regard.
Arrow crossover fanfiction is fan - created stories that involve characters from the 'Arrow' series crossing over with characters from other shows, universes, or even different timelines within the Arrowverse. It allows fans to explore new storylines and interactions that may not have occurred in the official canon.
Ra's al Ghul is a character that would be significant in a batman arrow crossover fanfiction. As a long - standing adversary of Batman and a figure with a large influence in the criminal underworld, his presence could add a lot of depth to the story. He might be involved in a plot that spans both Gotham and Star City, pulling the strings from behind the scenes. Additionally, Black Canary from Arrow could be important. Her martial arts skills and sonic scream ability would make her a formidable ally in a fight against the combined threats that a crossover would bring.