One challenge is character integration. The characters from RVB and RWBY have very different personalities and backstories. For example, the Reds and Blues are often comical and more laid - back compared to the RWBY characters who are more on a mission to save their world. So, making them interact in a believable way can be tough.
There's a crossover fic called 'Colors of Combat'. In this story, the Reds and Blues find themselves in the RWBY universe and have to adapt to the new rules and powers there. It has great character development as they learn from the RWBY characters and vice versa. The story also has some really cool fight scenes that blend the combat styles of both series.
Well, a cool concept in RWBY and RVB crossover fanfic is the technology exchange. RVB has advanced military tech, and RWBY has Dust - based technology. Imagine a situation where the teams in RWBY start using some of RVB's weapon systems or vice versa. Also, the different team dynamics could lead to some interesting storylines. The tight - knit teams in RWBY might learn from the more chaotic but effective teamwork in RVB.
A great idea for an RVB RWBY crossover fanfic could be a tournament - style story. Characters from both universes are forced to participate in a huge tournament. This would allow for a lot of different match - ups between the characters. The Reds and Blues' comical and sometimes unorthodox fighting styles would contrast with the more refined and trained fighting styles of RWBY characters. It could also lead to some interesting friendships or rivalries forming during the tournament.
For the RVB characters in the RWBY world, you can have them develop new skills related to Aura and Semblances. For example, Tucker could discover his Semblance is something like enhanced swordsmanship. And they could also develop in terms of their understanding of the RWBY universe's values.
The theme of self - discovery also pops up. Church may have thought he knew himself well in the RvB universe, but in RWBY, he's faced with new challenges and situations that make him re - evaluate who he is. He might discover new abilities or aspects of his personality while interacting with the RWBY characters and their world.
Ruby and Church could be an interesting pairing. Ruby is young and idealistic, while Church is often sarcastic and has a more jaded view. Their interactions could be really fun to read. Another would be Weiss and Tucker. Weiss is from a high - society background and Tucker is, well, Tucker. The contrast in their personalities and upbringing would make for an engaging story.
One great 'rvb crossover fanfiction' is the one that crosses over with 'Halo'. It blends the unique humor and character dynamics of RvB into the Halo universe, creating interesting scenarios where the RvB characters interact with the Halo lore and characters. For example, the Red and Blue teams might find themselves in the middle of a major Halo battle, and their comical antics add a new dimension to the serious Halo setting.
One popular RWBY watch RVB fanfiction might be 'Crossover Chaos'. It combines the unique elements of RWBY and RVB in a really interesting way. The characters from both universes interact in unexpected scenarios, like Ruby meeting the Reds and Blues during a mission. Another one could be 'Merged Realms' which focuses on how the powers and technologies of both worlds blend together. There's also 'Allied Worlds' where the teams from RWBY and RVB have to team up to face a common enemy.
You can start by looking on fanfiction.net. It has a large collection of crossover fanfictions, including those related to RWBY and RVB. Archive of Our Own (AO3) is also a great place. It has a more organized tagging system, so you can easily search for RWBY watch RVB fanfiction. Just type in the relevant tags like 'RWBY', 'RVB', and 'crossover' in the search bar, and you should find some interesting stories.