What could happen in 'Harry Potter discovers the Tensaiga' fanfiction?

It could still be Voldemort. Even with the introduction of the Tensaiga, Voldemort would remain a major threat. He might become even more interested in the Tensaiga once he learns about it, seeing it as a powerful tool to achieve his dark goals.

He would probably be amazed. Harry Potter comes from a world of wands and spells, but RWBY has a more modern - yet still fantastical - feel. The fanfiction might introduce him to new concepts like the Grimm, which are very different from the dark creatures he's used to. He could end up borrowing some ideas from RWBY to use in his own adventures, like the teamwork strategies the RWBY characters use.

Well, if Harry Potter discovers chakra, he could potentially gain new magical abilities. He might be able to combine his existing wizardry with chakra - based powers. For example, he could use chakra to enhance his spell - casting speed or strength. Maybe he could even develop new spells that are a fusion of the two magic systems.

Well, if Harry Potter discovers the Tessaiga in fanfiction, he might first be really confused by this strange new weapon. He'd probably try to figure out how it works. Since he's used to his wand, the Tessaiga's different form of magic or power could be a real head - scratcher for him. Maybe he'd start using it in battles against Voldemort's forces, adding a whole new dimension to his combat abilities.

Snape could be very cold at first, but then his natural instinct as a healer (since he is quite good at potions which are often used for healing) might take over. He might give Harry a potion to ease the pain and start to patch him up. All the while, he would probably be scolding Harry for being so reckless and getting into a situation where he got injured.

In fanfiction, Harry Potter could be wrongly accused of using dark magic in court. Maybe some false evidence is presented against him, like a planted dark magic item. And he has to fight to prove his innocence.

In fanfiction, the possibilities are endless. It could be that they go on an adventure to a previously unknown magical land or face a powerful dark wizard who was thought to be defeated.

Well, it could go in many directions. They might travel to a previously unknown magical realm or encounter creatures that were only hinted at in the original series.

In fanfiction, if Harry Potter disappears, it could lead to chaos at Hogwarts. His friends like Hermione and Ron would likely be on a desperate search for him. They might suspect the Dark forces at work again, and start investigating all the possible places where Harry could have been taken or hidden.

Well, it could be a meeting between Harry and some long - lost relative. Maybe a wizard from a far - off land who has a connection to his family. It could bring new revelations about his past and powers.