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.
Gilgamesh could also be a part of an ancient prophecy in the RWBY world. It could be foretold that a being like him would come during a time of great crisis. So, when he arrives, everyone is initially skeptical but soon realizes that he is a key player in the fight against the forces of darkness. His flamboyant personality and powerful abilities would add a new flavor to the RWBY universe.
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.
Gilgamesh would likely interact with Ruby in a rather condescending way at first. Since he's used to being the most powerful, he might underestimate her silver - eyed powers. With Weiss, he'd probably be intrigued by her family's status and her own ice - based powers, maybe trying to manipulate her into serving him.
One idea could be to have Gilgamesh as a powerful ancient being who awakens in the RWBY world. He could initially be seen as a threat but then form an unlikely alliance with the main characters. For example, he might offer his knowledge of ancient magic to help them fight against a new, powerful Grimm.
One great RWBY Gilgamesh fanfiction is 'Gilgamesh in Remnant' which has an interesting plot where Gilgamesh finds himself in the RWBY universe and his interactions with the characters are really engaging. He has some epic battles against Grimm and his over - the - top personality adds a lot of fun to the story.
In a 'noctis in rwby fanfiction', Noctis' ability to use magic, like his elemental attacks, would be a significant factor. In the RWBY world, magic is a somewhat mysterious and not - fully - explored aspect. Noctis could introduce new forms of elemental combat. His fire - based attacks could be used to counter ice - type Grimm, and his lightning attacks could stun enemies, allowing his RWBY allies to deliver finishing blows. Also, his ability to enhance his physical abilities with magic, such as increased strength or speed, would make him a formidable ally in battles against the powerful Grimm and any human adversaries that might arise.
Well, Bruce Wayne could bring his detective skills. He's like a super detective in his own world. In RWBY, he could help uncover secrets about the Grimm or the various factions. Maybe he'd team up with Team RWBY and use his martial arts skills in combat against the bad guys.
A Dragonborn OC can fit into the RWBY universe by having their own unique backstory related to dragons. For example, they could have been born in a world where dragons were both feared and revered. When they enter the RWBY universe, their dragon - like abilities such as enhanced speed, strength, and the ability to breathe fire or ice can make them stand out. They could become a new type of huntsman or huntress, using their powers for good.
Gilgamesh can be portrayed as a powerful and haughty figure. He could walk around the world of Danmachi with an air of superiority, looking down on the 'lesser' adventurers. His flamboyant style and his love for grandeur can be emphasized, like always wearing the most elaborate and expensive armor.
One idea could be that Gilgamesh, with his vast power and arrogance, arrives in the RWBY world. He might initially see the Huntsmen and Huntresses as beneath him but then becomes intrigued by Ruby's unique silver - eyed power. Another could be a scenario where Gilgamesh allies with a villain in RWBY, like Cinder, and together they try to reshape Remnant according to their desires.
In fanfiction, Darth Revan could be a mentor figure to some of the RWBY characters. For instance, he could see potential in Jaune and take him under his wing. He could teach Jaune about strategy and how to use the Force to sense opponents' moves. This would give Jaune a new edge in combat and also create an interesting dynamic between the two, as Jaune has his own moral code which might conflict with Revan's at times.