The fact that neither the old man nor Roger were Devil Fruit users yet became legendary figures also indirectly proves this point. Therefore, his intended use of Devil Fruit abilities was to clear out weaker enemies and provide support.
The Rumble-Rumble Fruit's ability to travel is indeed convenient, allowing one to travel between the Four Blues and the Grand Line in a short time. The Speed-Speed Fruit is also very useful when fighting against strong opponents, as it offers exceptional mobility.
Moreover, its effects become greater as time goes on. This ability can also be applied to more abstract thoughts, allowing him to make more rational and faster responses during battles and to think about more issues at the same time. This is how he casually killed the Golden Lion, not by accident when he ran into Blood Wither.
"You've just eaten the Float-Float Fruit, so you definitely can't control so many swords flying at the same time. But abilities only get stronger with continuous use and development."
You can try developing in this direction in your spare time. Later, I'll make you a sword case with twenty or thirty specially made flying swords inside.
If I can control even more flying swords in the future, I won't be able to carry them on my back anymore. I'll need to think of a better way to store them. Ten thousand swords will take up a lot of space, which is quite a hassle!
Vic immediately thought of the moment when Rebecca could control thousands of flying swords. At that time, with his own strength, he might have been able to openly use the Other-Dimension Ring. These swords could have been placed in the Dimensional Space. Then, a dynamic image appeared in his mind.
A warship was sailing on the sea, seemingly without any abnormalities. However, above the clouds above the warship floated an island that looked like it was covered in white hair.
Upon closer inspection, it turned out that the hairs were actually hiltless silver longswords, randomly stuck all over the island.
Just then, a sailboat flying the skull and crossbones flag appeared in front of the warship, and a tall, Red-Hair, aloof woman stood at the bow of the warship.
She raised her right hand and casually gestured. On the unseen island above her head, all the hiltless longswords hummed, shook slightly, and then rose up from the ground, sweeping down to the sea below like a gust of wind.
By the time the pirates on the pirate ship could see what the black dot flying towards them was, they were already terrified. They finally realized who was on the warship that had caught up with them—it was the Marine Headquarters Vice Admiral, the Ten Thousand Swords Witch, who struck fear into the hearts of pirates in the New World!
In the past two years, she has buried countless pirate crews in the depths of the sea. However, before they could even process their fears, tens of thousands of flying swords swept over like the wind.
After the gust of sword wind passed, there was no trace of the pirate ship or the pirates left; only some crimson stains remained in the seawater.
The sword wind that swept past soared straight into the sky, disappeared on the sea, and reappeared haphazardly, landing on the floating island. The aloof woman on the bow of the ship didn't even bother to glance at what was ahead, turning around and walking gracefully into the cabin. All around her were excited female marines, watching the woman's retreating figure with expressions of excitement and fervor.
This is Vic's vision of Rebecca's future, when Rebecca has developed the Float-Float Fruit to its Awakening state, and has become mature and aloof.
Her rank in the Navy had reached the level of Headquarters Vice Admiral, and she was even a candidate for Admiral. By then, Rebecca had already gone out on missions alone, and the warships were full of female marines who admired Rebecca.
Rebecca, having wiped out so many pirate crews, was known in the pirate world as the Ten Thousand Swords Witch," striking fear into the hearts of countless pirates who would flee at the mere mention of her whereabouts.
Thinking of this scene, Vic couldn't help but smile, feeling a sense of pride in his daughter growing up. Unfortunately, it was all just his imagination; the future was not up to him.
History has changed, and Rebecca might still be the same silly girl he worries about in the future, always by his side fighting on the seas. But no matter how things change, Vic will always protect Rebecca from harm when things turn out differently; that's his bottom line.
"Specialized? Why would we need specialized? Why not just buy the ready-made ones?"
Rebecca wanted to experience the feeling of flying on a sword that Vic had mentioned as soon as possible. She knew that making a custom-made one would definitely take longer than buying a ready-made one, so she asked somewhat reluctantly.
"Do you think Aizen in your hand can be used as a flying sword? It does look nice, but that gauntlet is superfluous; you don't need to use your hands to hold the sword."
The increased resistance when stabbing a person or object significantly increases the risk of the weapon getting stuck; these are all weaknesses, and unnecessary flaws to leave behind.
Furthermore, without a handguard and hilt, the sword case can store more throwing swords, understand?
After finishing speaking, Vic ruffled Rebecca's hair again. This girl was always a little impatient with beautiful things, but she didn't think about their shortcomings at all.
"Well... those are definitely better when they're custom-made. Did you make them yourself?"
Rebecca thought about it and realized that, as Vic said, a flying sword without a hilt and handguard was more practical and took up less space. Carrying a big, bulky box on her back was definitely not what she wanted. She wanted to appear beautiful, not clumsy, in Vic's eyes.
"Of course, I'll make the box and flying swords for you. Pack as many flying swords as possible; you'll need them later."
Vic had already imagined what Rebecca would be like many years from now, so he naturally knew that the more flying swords the better.
For now, we just need to fill the sword box; the rest can be crafted slowly and stored in the Dimensional Space.
Fortunately, the Rumble-Rumble Fruit's ability allows him to mass-produce flying swords, which won't take up much of his time, as long as he has enough materials.
These batches of flying swords don't need to be of a very high level; just make sure about a hundred of them are of good quality, and then apply the same Haki to the rest.
Even a powerful flying sword can't harm someone covered in Haki. A higher quality sword is useless; it's difficult to gather enough materials to forge tens of thousands of Grade Swords, let alone a higher-level one. This isn't something that can be done simply by being strong. Even the Navy and Vic would find it hard to accomplish. They can only take it one step at a time.
After asking about the development of the Float-Float Fruit, Rebecca lingered, reluctant to leave, until Vic practically pushed her out of the room. What was she thinking? Vic's injuries hadn't fully healed; he had no time for such nonsense.
Rebecca is getting bolder and bolder, all because of Wendy's influence. Thinking of Wendy, Vic thought of other things related to Wendy...
The lights in Vic's room went out, and the Foosha Village fell silent.