It could be that Velvet has a dream where she is in the Naruto world and is given the truth - seeking orbs. When she wakes up, she actually has the orbs with her. She then has to figure out what they are and how to use them. As she experiments, she discovers that the orbs can enhance her Semblance in RWBY in unexpected ways. This draws the attention of both her friends and some enemies, leading to a series of adventures as she tries to keep the orbs safe and understand their true purpose.
Maybe there is a villain who is trying to collect powerful artifacts from different universes, and the truth - seeking orbs are on their list. Velvet gets involved when she accidentally stumbles upon the orbs. She then has to protect them, and in the process, she learns how to use their power. She teams up with some Naruto characters who also want to stop the villain, and together they form an unlikely alliance to save both their worlds.
In such a fanfiction, perhaps Velvet discovers a portal that leads to the Naruto universe and comes across the truth - seeking orbs. She might be initially scared but then realizes their potential. She could then try to bring this new power back to her own world in RWBY to fight against the Grimm, creating a whole new dynamic in the RWBY storyline.
In some fanfictions, Naruto might obtain the Truth - Seeking Orbs through a special training. Maybe he discovers a hidden power within himself during a life - threatening battle. For example, when facing an extremely powerful enemy that pushes him to his limits, his chakra could mutate and form the orbs.
Well, in fanfiction, Truth - Seeking Orbs could be a really interesting addition to the Harry Potter universe. They could be made by a powerful wizard or be an ancient magical artifact. These orbs might work in different ways. For example, they could glow when in the presence of a lie or falsehood. Or they could project images or voices that are related to the truth of a particular situation. They could add a whole new layer of mystery and intrigue to the stories.
One ability could be enhanced attack power. The Truth - Seeking Orbs can be used to launch powerful strikes against enemies. For instance, Naruto could throw them like projectiles and they would explode on impact, causing massive damage.
Well, the Truth - Seeking Orbs can make a character extremely powerful. If a previously weak character gets hold of them, it can completely shift the power balance. For example, a minor ninja could suddenly become a major threat to stronger opponents.
A possible plot could be that Velvet has a unique power that is recognized by both the RWBY and Naruto universes. In the RWBY world, she might be seen as an outlier because of this power, but in the Naruto world, it's seen as something that could help in a great conflict. So, she gets transported to the Naruto world to help, and along the way, she forms bonds with Naruto and his friends. When she returns to RWBY, she has new skills and a different perspective.
In some fanfictions, Truth - Seeking Orbs are used to explore ancient mysteries. Wizards might use them to find out the truth about long - lost spells or the real intentions of historical figures. They can be like a magical detective tool that helps characters dig deeper into the secrets of the wizarding world.
Some fanfictions might explore the idea of the Truth - Seeking Orbs being used to rewrite reality. Since they are such a powerful and mysterious tool in the Naruto universe, a writer could take this concept and run with it. For instance, a character could use the orbs to bring back a lost loved one, but at the cost of something else. This would not only show the power of the orbs but also the moral and ethical dilemmas that come with using such powerful artifacts.
It could be about a new student at Hogwarts who discovers a truth - seeking orb in an old, forgotten corner of the castle. The orb reveals secrets about the founders of Hogwarts, which the student then has to decide what to do with. Maybe they face opposition from some teachers or older students who don't want these secrets out.
One way a fanfiction could combine RWBY, Naruto and Velvet is through a crossover of their worlds. Maybe Velvet could end up in the Naruto universe and learn ninja techniques, then bring those skills back to the RWBY world. It could also involve characters from Naruto being transported to the RWBY realm and interacting with Velvet and the others.