The use of legendary swords in Naruto fanfiction can also change the power dynamics between characters. A character who might not be as strong in the original series could become a formidable force with the aid of a powerful sword. Say, a side character gets hold of the Kubikiribocho and suddenly becomes a key player in battles, creating new and interesting storylines.
They're often made more powerful. For instance, the Samehada might be shown to have even greater absorption abilities in fanfic. It could absorb not just chakra but also other forms of energy.
One of the most famous legendary swords in fantasy novels is Excalibur from the Arthurian legends. It is often depicted as a symbol of kingship and power. Another is Andúril from 'The Lord of the Rings'. It was reforged from the shards of Narsil and was a key weapon against the forces of Sauron. Stormbringer, in Michael Moorcock's works, is a powerful and somewhat cursed sword that gives great strength to its wielder but also has a dark side.
The Sword of Shannara. It's a key element in Terry Brooks' series. It has the power to destroy the Warlock Lord and is a very important weapon in the fight against evil in that fictional world.
One possibility in this fanfiction could be Naruto somehow getting involved with the power of the 7 Wizarding Swords. Maybe he is transported to a world where these swords exist and has to learn to use their magic in his own unique ninja way. He could combine his chakra with the magic of the swords to create new and powerful attacks.
The Snakes, especially those related to Orochimaru's summons, are often used in fanfiction. They can bring an element of mystery and danger. Some fanfictions might explore the idea of a redeemed snake summon that helps Naruto in his quests, or a more powerful, ancient snake that was hidden away until now.
In some Naruto fanfictions, Naruto might gain the ability to conjure swords through a special training arc. Maybe he discovers a new chakra technique that allows him to materialize swords from his chakra. For example, if he combines his wind - style chakra with some ancient sealing jutsu he learned, it could result in sword - conjuring ability.
In such a fanfiction, Naruto might obtain all seven swords through a series of epic battles and adventures. Maybe he defeats the previous owners one by one in honorable combat and claims the swords as his trophies. Another possibility is that he stumbles upon a hidden treasure trove where all the swords are stored, and by some twist of fate, he becomes their rightful wielder.
One possible fanfiction could be 'The Staff of the Sage'. In this story, Naruto discovers the staff during a mission in an ancient ruin. The staff has the power to control nature elements. Another one might be 'Naruto and the Mysterious Staff'. Here, the staff is linked to an old prophecy about a ninja who will save the world with a powerful relic. And there's also 'Staff of Legends: Naruto's Adventure' where Naruto has to learn how to use the staff's powers to defeat a new and powerful enemy.
One possible fanfiction could be about Naruto finding a sword that has a special connection to the Sage of Six Paths. Maybe the sword has the power to enhance his Rasengan or even cut through dimensions. It could also have a mind of its own and initially resist Naruto, but over time they form a bond.