One possible plot could be Sakura using the kubikiribocho to defend her village or friends. She might face powerful enemies and have to master the weapon quickly.
I'm sorry I can't directly recommend a specific 'sakura wields kubikiribocho fanfic' as there are so many fanfics out there and I don't have a comprehensive database of them. You can try searching on popular fanfic websites like Archive of Our Own or Fanfiction.net.
One possible scenario is that Naruto uses the Kubikiribocho to face off against stronger opponents. He could use it to surprise his enemies who are used to his regular attacks. Another scenario is that he might have to protect the weapon from those who want to steal it for their own evil purposes. And perhaps he'll learn some new skills related to the weapon from an unexpected source, like an old hermit who knows the secrets of Kubikiribocho.
If Naruto wields Kubikiribocho in fanfiction, it would be a game - changer. The weapon's unique abilities, like its cutting power and possible hidden techniques, would enhance Naruto's combat capabilities. It could also lead to some interesting character development. Maybe Naruto would struggle with the violent nature of the weapon at first, as he is a character who values life. This internal conflict could add depth to his character and make the fanfiction more engaging.
A plot could be where an enemy uses the Kubikiribocho to cause chaos and Naruto has to find a way to stop them. He might need to team up with some unexpected allies and figure out the weaknesses of the weapon. He could also try to find a way to sever the bond between the enemy and the Kubikiribocho.
The fanfic could also be centered around a character who is in possession of the Kubikiribocho and Naruto has to face off against them. It could explore themes like power, loyalty, and the consequences of using such a powerful weapon. There might be moral dilemmas for Naruto as he decides how to deal with the wielder of the Kubikiribocho.
The phrase 'a sword wields no strength' in fanfic might be used to introduce a new concept of power. It could be that the author wants to show that the old ways of relying on brute force with a weapon are obsolete. In the fanfic's world, perhaps there are new forms of energy or abilities that make a sword seem powerless. For instance, if the story is set in a world where psychic powers are dominant, then a sword would be of little use compared to the ability to manipulate minds or objects with one's thoughts. This can add depth to the story by challenging the traditional ideas of strength and power and making the reader consider different aspects of what it means to be powerful in a fictional setting.
Maybe it's an old and experienced Jedi master. They have the wisdom and skill to handle such a powerful weapon. They could have been on a long journey to find this 'best sword' and now use it to protect the galaxy from the rising dark side forces. They know all the secrets and techniques to fully utilize the power of this special lightsaber.
Well, one possible plot could be that Naruto somehow travels to the Warcraft universe and discovers Frostmourne. He might initially be drawn to its power and pick it up. Then, he could face the consequences of wielding such a cursed blade, like being haunted by the souls trapped in it. And he has to find a way to either control it or get rid of it while also dealing with the new enemies in this strange world.
I'm not sure of a specific 'naruto wields frostmourne fanfic' off the top of my head. But you can try searching on fanfic websites like Fanfiction.net or Archive of Our Own. They usually have a large collection of crossover fanfics and you might be able to find one with Naruto using Frostmourne there.