One interesting concept could be the unique powers that a god OC might possess. For example, they could have the power to manipulate time, which would add a whole new dynamic to the RWBY universe. Maybe they can freeze time to prevent a disaster or reverse time to correct a wrong decision.
The appearance and personality of the god OC can also be very interesting. They could be a benevolent god, looking out for the well - being of the people in Remnant. Or they could be a more complex character, with both good and bad sides, and their actions are often misunderstood by the RWBY characters.
Another concept is the role of the god OC in the existing RWBY lore. They might be a hidden force that has been guiding the characters all along. They could have a connection to the Maidens or the Relics, perhaps influencing their creation or purpose.
One interesting concept could be unique semblances for original characters. For example, an OC with a semblance that allows them to manipulate time in a limited way, like slowing down opponents' movements for a short period. This can add a new dynamic to fight scenes.
One interesting concept could be the unique powers that a dragon OC might possess. For example, it could have the ability to breathe different types of elemental attacks like ice, fire, or lightning, which is not common among the regular RWBY characters. Another concept might be the backstory of the dragon OC. Maybe it was once a part of an ancient race of dragons that had a special connection to the world of Remnant before the events of RWBY. Also, the interaction between the dragon OC and the main RWBY characters can be really engaging. How would Ruby, Weiss, Blake, and Yang react to a dragon in their midst? Would they see it as a threat or a potential ally?
Well, a cool concept is the transformation of the OC's personality over time in the reincarnation fanfiction. Since they have memories from another life, they might start off as a bit of an outcast, being different from the others in the RWBY world. But as they interact more and more, they gradually change. Another aspect is the power evolution. Their powers from the past life could merge or transform in this new world. For instance, if they had the power of elemental control in their past life, it could manifest in a new and unique way in RWBY, like being able to control Dust in a way no one else can.
Another idea is an OC gamer who discovers a hidden, game - like dimension within the RWBY universe. This dimension could have its own set of rules and challenges, similar to a video game level, and the OC has to navigate through it using their gaming knowledge.
One interesting concept could be the exploration of the God of Darkness's backstory. It might delve into how he came to be and what his true motives are. Another could be the way his power affects the RWBY universe and its characters. For example, how his influence might change the balance between good and evil in the story.
One interesting concept could be Ruby's newfound god - like powers and how they change her relationships. For example, her teammates might view her differently, with a mix of awe and fear.
Another aspect is the world - building. In 'danmachi oc god fanfiction', the author might expand on the existing world of DanMachi. They could introduce new areas of the dungeon that are only accessible through the OC's special relationship with the god. This can add a whole new layer of mystery and adventure to the story.
One interesting concept could be the reincarnation aspect. It allows for the OC (Original Character) to have a new start in the RWBY universe, perhaps with knowledge from their past life that gives them an edge. Another concept might be the harem part, which could lead to various relationship dynamics and character interactions within the story.
In RWBY Star Wars OC fanfiction, an interesting concept is the idea of RWBY characters in Star Wars - style starships. Imagine Ruby Rose flying a ship through an asteroid field, using her speed semblance to quickly dodge obstacles. Also, the concept of combining Dust from RWBY with the technology in Star Wars could lead to some really cool weapon designs. For instance, a blaster that uses Dust to enhance its power or change the type of shot it fires.
One interesting concept could be the unique character interactions. In a harem - style fanfiction set in the RWBY world, the original characters (OCs) might have different dynamics with the RWBY cast. For example, an OC with a special power could form various relationships, like a friendship - turned - romance with a particular RWBY character.