One common theme is leadership. Gilgamesh, being a king in his own right, often takes on a leadership role or at least has his leadership style compared to the leaders in RWBY. Also, the theme of adaptation is quite prevalent. Gilgamesh has to adapt to the new world of RWBY, with its unique Grimm, Dust, and Semblances. And the RWBY characters also have to adapt to his presence, which makes for some interesting character development in these fanfictions.
He could be integrated as a powerful enemy at first. He might target the academies because he sees them as places that are trying to control and limit power, which goes against his own philosophy. However, as the story progresses, he could have a change of heart after seeing the selfless acts of the RWBY characters. He could then use his powers to help them against a common enemy like Salem.
Power and growth are common themes. Gilgamesh often starts with a certain level of power and then grows even more as he progresses in the gaming world. Another theme is exploration, as he explores different game levels and areas.
Well, in fem Gilgamesh fanfiction, the theme of adaptation is quite common. Whether it's adapting to a new role as a female leader or adapting to different situations in the story. Love and relationships also pop up a lot. It could be her relationships with her subjects, or potential romantic relationships. And the theme of legacy is also there. How does the female Gilgamesh want to be remembered? How does she build on the legacy of the original Gilgamesh? All these are common themes.
One common theme is power. Gilgamesh is a very powerful character, and when he's crossed over into other universes, his power often becomes a central point. Whether it's him showing off his power or having to restrain it in a new world.
Another theme is the clash of ideals. Gilgamesh has his own view of kingship which is often at odds with Saber's. This conflict of ideals can lead to some really intense and interesting storylines. For example, in some fanfictions, they have long debates about what it truly means to be a king.
Another theme could be self - discovery. Fem Harry, being in a different context with Gilgamesh, might discover new aspects of herself. She could learn about different forms of heroism from Gilgamesh, and in the process, re - evaluate her own identity and purpose. The fanfictions might also touch on how their relationship helps them both grow as characters, with Gilgamesh perhaps learning about modern concepts through Harry, and Harry learning about ancient wisdom from Gilgamesh.
The exploration of Gilgamesh's character is also a major theme. Many fanfictions use the crossover concept to dig deeper into his personality. They might show a softer side of him that was not fully explored in the original Fate series, or they might further emphasize his pride and arrogance in new and different situations, like when he's in a world full of magic users who don't recognize his kingly status immediately.
A prevalent theme is the adaptation of Gilgamesh to the Fairy Tail setting. How does he fit into the guild structure? Does he try to take over, or does he find a place among the members? Additionally, the theme of redemption can sometimes be present. If Gilgamesh is portrayed as a more complex character, he might have a journey of redemption within the Fairy Tail world, learning from the values of the guild.
Love and romance are also common themes. She might be paired with other characters in the Fate universe, and the fanfictions explore how their relationships develop. This could be a complex relationship given her strong - willed and powerful nature. Additionally, some fanfictions may explore themes of loyalty, especially in relation to her role as a Servant and her relationship with her Master.
One common theme is the discovery of identity. The oc has to figure out who they are as a descendant of Gilgamesh.