Power and its consequences is also a common theme. Since Sakura has unique powers in the Fate Stay Night lore, fanfictions often explore how she deals with the power she has. For example, how it affects her relationships and her moral compass. Redemption is another theme, especially when dealing with Sakura's past and any mistakes or hardships she has faced.
One common theme is the clash of different power systems. Percy has his own set of powers and abilities, and when he enters the Fate Stay Night world, there's a contrast and sometimes a combination with the magic and Servant powers there. Another theme is adaptation. How Percy adapts to the new rules, the new culture, and the new challenges of the Fate Stay Night universe.
One common theme is redemption. Since Medea has a rather dark past in the original work, many fanfictions explore her path to redemption, trying to atone for her past misdeeds.
One common theme is the power struggle. Both Naruto and Fate Stay Night have characters with different levels of power, and in fanfiction, often there are stories about characters trying to gain more power or deal with the power they have. For example, Naruto characters might have to adapt to the magic - based power system in Fate Stay Night.
One common theme is the clash of power systems. Since Bleach has its spiritual powers and zanpakuto, and Fate Stay Night has magic and Servants, seeing how these interact is a big draw. For example, how would a Servant fare against a Hollow in Bleach? Another theme is the exploration of different ideologies. The characters in both series have distinct beliefs and values, and fanfictions often explore what happens when these collide.
One common theme is self - discovery. The self - insert characters often have to figure out who they are in this new and complex world of Fate Stay Night. Another theme is power growth. They usually start from a relatively weak state and gradually gain more power and influence.
The idea of destiny also plays a big role. In both Naruto and Fate Stay Night, destiny is a significant concept. In the fanfictions, it could be about whether Naruto characters can change the pre - determined fate in the Fate Stay Night world, or how the Fate Stay Night characters view the idea of 'becoming Hokage' which is Naruto's big goal.
Love and friendship are also common themes. The OC might form deep bonds with the existing characters from 'Fate Stay Night'. They could fall in love with a Servant or develop a strong friendship with a fellow master. In addition, the theme of destiny is often explored. The OC's presence might change the pre - ordained destiny of the 'Fate Stay Night' world, and they have to come to terms with the consequences of their actions on the overall fate of the story.
One common theme is power and its use. Since the self - insert character is often thrust into a world full of powerful mages and heroic spirits, they have to figure out how to use their own power or lack thereof. Another theme is identity. They need to establish who they are in this new world filled with pre - existing characters and storylines.
One common theme is the exploration of different magical systems. Since both Harry Potter and Fate Stay Night have their own complex magic, fanfictions often explore how these magics interact or compare. For example, how the spells in Harry Potter would fare against the magecraft in Fate Stay Night.
Love and friendship are also common themes. An OC could develop a deep friendship or even fall in love with Mordred. This relationship can be complicated by Mordred's status as a Servant and the events of the Holy Grail War. It can also be a source of character development for both the OC and Mordred. For instance, Mordred might learn about different forms of love and loyalty through her relationship with the OC, while the OC might grow in courage and determination as they get closer to Mordred.