Well, it's really hard to say. The Black Swordsman has his own set of skills with the sword and his combat experience. But Dark God Vegeta is extremely powerful with his Saiyan abilities. If they were to fight, it would depend on the context. If it's in a close - quarters combat, the Black Swordsman's sword skills might give him an edge initially. However, Vegeta could quickly adapt and use his energy blasts and super - strength to overpower. In a more open area, Vegeta's long - range attacks would be a big threat to the Black Swordsman.
One interesting plot point could be the initial encounter between the two. How would they react to each other? The Black Swordsman might be cautious seeing such a powerful being as Dark God Vegeta. Another point could be the discovery of each other's weaknesses. Maybe the Black Swordsman finds a way to temporarily nullify Vegeta's energy attacks, or Vegeta discovers that the swordsman's sword has a special power that can harm him. Also, the moment when they start to respect each other's fighting abilities during the battle would be really engaging.
In a fanfic, Naruto might power up by having a spiritual awakening. He could connect with the spirits of past Hokages in a deeper way, gaining their knowledge and some of their power. This could enhance his existing jutsu and give him new abilities. Vegeta could power up if he were to face a near - death experience against Naruto. This could trigger a hidden potential within him, like a new type of Super Saiyan form that has unique abilities. He could also fuse with another Saiyan (if there were another Saiyan available in the fanfic's scenario) to create an even more powerful being.
Yes, there are likely fanfictions out there with such a concept. Fanfiction writers often take creative liberties and blend different universes or give characters new and unique roles. Naruto's character has a lot of potential for this kind of transformation in the hands of imaginative writers.
In some Naruto fanfictions, the concept of Naruto killing a God of Destruction might seem far - fetched. However, it could be possible in a fan - created alternate universe. Writers might give Naruto new powers or abilities that allow him to take on such a powerful being. Maybe he acquires some sort of ultimate jutsu or taps into a hidden power source within himself.
In this fanfiction, Naruto could gain the powers of a God of Destruction through a special encounter. Maybe he meets an ancient being who sees his potential. His training to control these powers would be intense. He would have to learn to balance his old ninja values with the new role of maintaining balance in the universe through destruction when necessary.
Well, in this fanfiction concept, Naruto could bring a whole new dynamic to Universe 11. Since he has his own set of values from his ninja world, it could clash or blend with the values in Universe 11. He might introduce the idea of teamwork in a different way compared to what the beings in Universe 11 are used to. Also, his ability to never give up could inspire many in Universe 11. And perhaps, his journey in this universe could lead to him unlocking new forms or powers that are a combination of his ninja abilities and the energy sources in Universe 11.
Goku does reach a state of immense power in the manga that rivals that of a God of Destruction. However, the specific title and all its implications might not be straightforwardly assigned to him. It's a complex development within the story.