Redemption is also a big theme. Given the nature of the Ghost Rider, many fanfictions explore whether he can find redemption or if he's doomed to be a force of vengeance forever. It's an interesting take on his character.
One common theme is the clash of different powers. RWBY characters have their unique abilities like semblances, and Ghost Rider has his hellish powers. Writers often explore how these powers interact when the characters meet. Another theme is the moral struggle. Ghost Rider is often associated with a sense of justice in a very dark and extreme way, while RWBY characters also have their own moral compasses. So, seeing how they reconcile or conflict in a crossover is popular.
A common theme is the clash of different power systems. The Ghost Rider has his demonic powers while RWBY has the Dust - based and semblance powers. Fanfictions often explore how these powers interact and conflict when the two universes collide.
A common theme is the clash of different moral codes. The Justice League generally has a more 'do - gooder' approach, while Ghost Rider's justice is often more about vengeance. Another theme is power - related, like how the League deals with Ghost Rider's otherworldly powers.
One common theme is power dynamics. Since Ghost Rider has such unique and powerful abilities compared to the Quirks in My Hero Academia, exploring how that changes the power balance is a big one. Another is the clash of different moral codes. Ghost Rider has his own sense of justice which might not always align with the hero society in My Hero Academia.
A common theme is the struggle between good and evil. Since Ghost Rider is associated with justice and Blackheart is a villain, the OC often gets caught in this moral battle. Another theme is redemption. The OC may try to redeem Blackheart or vice versa.
One common theme is the clash of different power systems. Naruto has his chakra - based powers and Ghost Rider has his hellish powers. Another theme could be redemption. Since Ghost Rider often has elements of a tortured soul seeking redemption, it might be applied to Naruto characters in some fanfictions. Also, the theme of good vs evil is often explored, as both Naruto and Ghost Rider deal with different forms of evil in their respective universes.
One common theme is adventure. Flynn is often depicted going on new and exciting adventures. Another is love, especially his relationship with Rapunzel. And his past and how it shaped him is also a popular theme.
Common themes could include friendship, adventure, or overcoming challenges. If 'the rider' and 'will' are in a fantasy setting, magic and quests might be common themes as well.
One common theme is adventure. Since Harry is a rider, he often goes on exciting journeys, exploring new places and facing various challenges. Another theme could be self - discovery. As he rides, he learns more about himself and his capabilities.
One common theme is friendship. Goggles and Rider have a unique dynamic in the Splatoon world, and fanfictions often explore how their friendship develops over different situations, like in the middle of a Turf War or when facing a new threat in the Inkling world.