First, find two universes that have elements that can either contrast or complement each other well. For example, if you're crossing God of War with a more light - hearted fantasy world like that of Spirited Away. You could start with Kratos being transported there. The initial confusion and his attempts to figure out how to get back while dealing with the spirits and magic of that world can form the early part of the plot. Then, as he discovers a common enemy that threatens both his world and this new one, he has to team up with the local characters.
You can also create a plot around a power struggle. Let's say it's a God of War and the DC Universe crossover. Kratos' god - like powers might be seen as a threat by some in the DC world. Superman might initially view him as a potential danger, while Kratos sees the superheroes as strange new beings. But then they find out that a powerful villain is using the chaos of their meeting to try and take over both worlds. This forces them to work together.
First, establish a common goal for the villains. It could be something like obtaining a powerful artifact that exists across multiple universes. Then, add conflict among the villains. Maybe one wants to use the artifact for personal gain while others have different motives. Also, introduce a hero or a group of heroes who are trying to stop them. This creates tension and a race for the villains to achieve their goal before the heroes interfere.
You can start by identifying the common elements between the two shows. For instance, both have a lot of mystery and secrets. Combine the 'A' mystery from PLL with the vampire - related secrets in TVD. Maybe 'A' is actually a vampire or is being controlled by a vampire. This would immediately create a high - stakes situation.
To create a compelling fanfic, you need to develop interesting relationships between General Grievous and the characters from the other universe. For instance, if it's a crossover with the DC Universe, how would he interact with Batman? Batman might be intrigued by Grievous' robotic enhancements and try to find a way to disable him. This kind of interaction can drive the story forward. Moreover, add some emotional depth to General Grievous. Maybe he has a moment of self - reflection when exposed to the different values in the crossover universe.
Start with a character from an unexpected universe getting invited to the Tournament of Power. For instance, a character from a fantasy world where magic is the main power source. Then, as they enter, they face challenges not only in the battles but also in understanding the technology and different power systems in the Tournament of Power world.
To create a compelling Bradley in a crossover, you need to keep his core characteristics. His sense of duty and his military leadership skills should be emphasized. For example, if he crosses into a world of pirates, he could use his leadership to organize the pirates into a more efficient crew.
You could develop a plot around the bionic man's relationships. Maybe he has a best friend who is a scientist and helps him upgrade his abilities, but this friend is also in danger because of their association. Another aspect could be his relationship with the community. He tries to prove that he's not a threat, which adds depth to the story.
Develop the characters' relationships carefully. Let's say a Campione character is initially distrustful of the devils in Highschool DxD due to their reputation. But as they face challenges together, they begin to understand and respect each other. This kind of relationship arc can make the story really engaging. You can also introduce sub - plots that explore the different cultures and power systems of the two series. For instance, the Campione's divine powers and how they compare to the magic in Highschool DxD. By doing this, you add depth and complexity to the overall plot. And don't forget to have a satisfying climax where all the characters' growth and the different plot threads come together in a big showdown against the main antagonist.
One of the most interesting aspects of a Perseus Jackson in God of War fanfiction could be his relationship with Kratos. Kratos is a complex and powerful character. Perseus, with his own set of values and beliefs, might either become an ally or an adversary to Kratos. They could learn from each other's combat styles and experiences, or they could be at odds due to their different views on the gods and their roles.
You need to give the god unique powers and personality. Make them stand out and have a clear purpose in the story.
First, you need to build a believable world and its politics. Then, design unique and well-developed characters with their own goals and backstories. Also, think about the strategies and tactics used in the war and how they evolve over time.