Clark and Barry would likely start off as cautious allies. Clark, being more experienced in the superhero game in a sense, might initially be a bit of a mentor to Barry. But as they face challenges together, they'd become true friends. Lois Lane would probably be intrigued by Barry's speed and his different approach to reporting. She might even try to get some scoops from him. Meanwhile, Chloe Sullivan could help Cisco Ramon with some of his tech issues, and they'd form a bond over their shared love of all things tech - savvy.
The relationships would develop in complex ways. Clark's relationship with Barry would be central. They'd have to learn to trust each other's instincts. Clark's super - hearing might pick up on things that Barry's speed can't reach, and vice versa. Their friendship would be based on mutual respect for their different powers and abilities. On the female side, Caitlin Snow might find herself drawn to the mystery of Smallville. She could bond with Martha Kent over their scientific knowledge. And then there's the relationship between the villains. If a Smallville villain like Lex Luthor were to cross paths with a Flash villain like Reverse - Flash, it could create a whole new level of enmity and competition that would impact how the heroes interact as well.
At first, the characters would be a bit skeptical of each other. Clark has his own way of doing things in Smallville, and Barry is used to the fast - paced world of Central City. But as they fight side by side, their relationships would deepen. For example, Oliver Queen from Smallville could teach Barry some new archery skills, and in return, Barry could show Oliver how to be even faster in combat. The Flash's team at S.T.A.R. Labs would be fascinated by the Kryptonian technology that Clark brings with him, and this could lead to new collaborations and friendships. And Iris West would probably befriend some of the Smallville characters, like Lana Lang, and they'd share stories about their respective heroes.
Lois Lane in Smallville could have an interesting relationship with Supergirl. Lois might be initially skeptical of this new superhero in town. But as she sees Supergirl's selfless acts, she could become an ally and even a friend. And Clark would be in the middle, trying to make sure they both get along. Their relationships would be complex and full of growth as they interact more.
The Reverse Flash could also be a main villain in this crossover. He travels to the Smallville universe to cause trouble. He might target Clark, thinking that by eliminating him early, he can change the future in his favor. This would force Barry and Clark to work together to stop the Reverse Flash's evil plans.
Lex Luthor would see Gotham as a new playground. He could try to manipulate some of the power players in Gotham, like the mob bosses or corrupt politicians. Batman would be on to him quickly, though. And this would lead to a cat - and - mouse game between Lex and Batman. Meanwhile, Clark would be caught in the middle, trying to figure out who to trust and how to stop Lex without causing too much collateral damage.
The hot - headed Natsu from Fairy Tail and Alibaba from Magi might start off as rivals, competing to see who is the stronger fighter. But as they face challenges together, they could develop a mutual respect for each other's courage and determination. They might learn from each other's fighting styles too, with Natsu learning some strategic moves from Alibaba and Alibaba getting inspired by Natsu's never - give - up attitude.
When it comes to Natsu and Sailor Mars, they could start off as rivals in terms of their fire - related powers. But as they train together and face challenges, they could develop a mutual respect. Natsu might learn some discipline from Sailor Mars' more refined use of her powers, and she could learn to be more spontaneous from Natsu. Their relationship could grow into a strong friendship, and they might even have a friendly competition to see who can defeat more enemies using their fire powers in a joint mission.
Well, for starters, Lucy and Elizabeth could become fast friends. They both have kind hearts and are often in need of protection, though they are also strong in their own ways. Natsu and Meliodas would probably be a chaotic pair. They both love to fight and eat, and would likely get into all sorts of adventures together. Their relationship could start as a friendly competition but grow into a deep friendship. Meanwhile, Happy and Hawk would probably bicker a lot at first over food, but then become good friends as they realize they have a common goal of helping their main characters.
Some characters might become closer if they share the same feelings about the fanfiction. For example, if two characters both find a certain part of the fanfiction hilarious, they could bond over that.
The Flash's ability to vibrate through objects could be really interesting when combined with the Avengers. He could use this to get into secure areas and disable security systems for the Avengers. When it comes to Captain America, Flash could help Cap by quickly getting him to different strategic points on the battlefield. And with Black Widow, Flash could provide a quick escape route if she gets into a tight spot. There would be a lot of potential for cool teamwork and unexpected combinations of their abilities.
One exciting plot twist could be the discovery of a hidden connection between Smallville's Clark Kent and The Flash's Barry Allen that predates their superhero identities. Maybe they are related in some way through their alien or metahuman genetics. Another could be a villain who has the ability to manipulate time and space, causing chaos in both Smallville and Central City. This would force Clark and Barry to work together in ways they haven't before. A third plot twist might be that a character from Smallville who was thought to be normal actually has latent superpowers that are activated during the crossover, adding an unexpected element to the story.
Perhaps in the fanfiction, there's a time - traveling aspect. Barry's time - traveling experiments go wrong and he ends up in Smallville during Clark's high school years. They have to figure out how to get Barry back to his own time while also dealing with a villain who is trying to change the future by targeting Clark in the past. This could involve both of them learning about each other's powers and how to work together effectively.