One potential character could be Sasuke. Imagine in a dark, alternate universe fanfic where Sasuke, instead of using his sword, wields a scythe. It could be a symbol of his more menacing and reclusive nature. He might use it with his Sharingan abilities, making his strikes not only powerful but also unpredictable as he can anticipate his opponents' moves.
Kakashi could be a candidate too. Given his diverse range of skills and his ability to adapt to different situations, in a fanfic, he might use a scythe as a way to surprise his enemies. He could use his Sharingan to quickly analyze the best ways to use the scythe in battle, perhaps even using it in combination with his lightning - based jutsu, like attaching lightning to the blade of the scythe for extra - powerful strikes.
Rock Lee could also be an interesting choice. In a fanfiction where Lee wants to break away from his traditional taijutsu-only style, he might pick up a scythe. He could incorporate his incredible speed and physical strength into scythe - based combat, spinning and twirling the scythe in a way that combines his unique fighting style with this new weapon. It would be a fresh take on his character development.
Perhaps a foreign ninja who comes to the Hidden Leaf Village. They bring with them the scythe - using techniques from their own land. This ninja could be on a mission to learn more about the chakra system in the Naruto world and in exchange, teach their scythe skills. Their different cultural background would add an interesting dynamic to the story as they interact with the local ninjas.
It could be a new character, like a young boy from a small ninja clan that has a tradition of using scythes. He enters the main Naruto world and his unique scythe - using skills draw the attention of both friends and foes.
He might use a scythe with a chakra - infused blade. This would give it an extra edge (literally) in combat, allowing it to cut through tougher materials. The scythe could also have some sort of sealing mechanism on it, similar to his kunai, so he could store small items or even chakra - based attacks within it for surprise strikes.
The origin could be some ancient, long - forgotten magic. Maybe it was created by a powerful and now - extinct clan. They might have imbued it with a spirit or some form of intelligence for a specific purpose, like protecting a hidden treasure or an important location.
Maybe the story could revolve around a female naruto character who uses a scythe in a very unique way. She is an outcast in her village because of her strange weapon choice, but she ends up being the key to saving the village from a great threat. As she battles, she discovers new abilities of her scythe that are crucial for victory.
Perhaps it was a weapon created by a rogue ninja with unique powers. And for some reason, it found its way to Naruto in Wave. It might also be a weapon that was enchanted by a sorcerer long ago and has special abilities that Naruto will discover as he uses it.
Perhaps in a fanfiction, there is a cursed scythe that has been causing chaos in the ninja villages. It has the power to corrupt those who touch it. A young ninja, who is an outcast, decides to take on the challenge of taming the scythe. As they struggle with the curse, they also face opposition from the villages who fear the power of the scythe, but in the end, they use it for good and prove everyone wrong.
The plot could start with Naruto being an outcast in his own world for some reason. Then, he stumbles upon a mysterious power that turns him into a Death Scythe. This new power gives him a chance at redemption. He embarks on a journey to prove himself. He might meet other Death Scythes or those who oppose them. His journey could involve learning about the origin of the Death Scythes, their purpose, and how his own values from the Naruto world can be applied in this new and dangerous situation. He may also have to face some of his old enemies who now see him as an even greater threat due to his new powers.
It could have been left by an old ninja who passed away. Maybe it was a powerful weapon of a long - forgotten shinobi, and Naruto just stumbled upon it in an old, abandoned hideout. The shinobi might have been a hermit who lived in the outskirts of the village.
The scythe might make Naruto's combat style more aggressive. He could use it for long - range attacks and quick slashes, adding a new dimension to his fighting. For example, he could combine his shadow clone jutsu with scythe attacks, having clones distract the enemy while he swoops in with the scythe.