One common theme is the clash of powers. Since Brightburn has such a different and often darker power set compared to the characters he crosses over with, like in crossovers with DC heroes, the conflict between his power and their more traditional heroic powers is a big focus.
The theme of identity is also common. Brightburn, being an alien with his own set of values, when he crosses over, he has to figure out his place in a new world filled with different heroes and villains. In crossovers with the Avengers, he might struggle with whether he wants to be a part of their group or go his own way.
Power corruption is a common theme. Just like in Brightburn where the power can lead to dark actions, in these fanfictions, Naruto or other characters with similar powers often face the temptation of using their newfound abilities for wrong reasons.
A prevalent theme is also the relationship with the other characters from 'Brightburn'. For example, the male reader could form a friendship or rivalry with Brandon, the main character in 'Brightburn'. There might be stories where they team up to face a common threat or where they are at odds due to their different views on power usage. This adds an interesting dynamic to the fanfiction.
One common theme is adventure. Since the Valerian universe is full of exciting and unknown elements, when crossed with other universes, it often leads to epic adventures. For example, a crossover with a space - opera like Star Trek could result in a story where Valerian and his companions explore new galaxies together with the Star Trek crew.
One common theme is the clash of different powers. For example, when the Incredibles cross with other superhero groups, there's always the exploration of how their powers compare and contrast.
Power struggle is a common theme. Starscream is often power - hungry in the original Transformers series, and in crossovers, this trait is magnified when he enters new universes with different power hierarchies. For example, in a crossover with the Lord of the Rings, he might try to claim the One Ring to gain ultimate power.
The theme of adaptation is quite prevalent. Asriel has to adapt to different cultures, technologies, and ways of life in the crossovers. For instance, if he enters a cyberpunk - themed world, he has to get used to the high - tech environment and the different social structures. Another common theme is the exploration of good and evil. When he crosses over to a world like the Lord of the Rings, he has to decide which side he's on and how to fight against the forces of evil in that world. This exploration of moral concepts is an important part of many Asriel crossover fanfictions.
A common theme is the clash of different assassin cultures. For example, when Hitman crosses with other assassin - themed franchises, their methods of killing, their code of ethics, and their loyalty to their respective organizations are often compared and contrasted.
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 common theme is power struggle. Since Shego has her own set of powers, when she crosses over into other universes, there's often a conflict or comparison of powers. For example, in a crossover with the Powerpuff Girls universe, her powers are pitted against the superpowers of the girls. Another theme is the exploration of her character. Writers often use crossovers to show different sides of Shego, like her potential for redemption or her adaptability in new situations.
One common theme is the clash of different investigative styles. For example, when a character from 'The Mentalist' crosses over with a detective from another show, their methods of solving crimes might be very different. Another theme is the exploration of new worlds. If it's a crossover with a science - fiction or fantasy show, the mentalist character has to adapt to a whole new set of rules and environments.