Some fanfictions interpret it as having a connection to ancient deities. For example, Luffy's fruit could be related to a sun god, giving him the ability to emit intense heat or bright light. Others might see it as a key to unlocking hidden dimensions within the One Piece world, allowing Luffy to travel to places no one else can reach.
Well, it depends on how the fanfiction is written. In some fanfictions, the author might enhance the powers of Luffy's Mythical Zoan Devil Fruit to make it seem more overpowered. For example, they could give it additional abilities like the power to control certain elements that are not present in the original. However, in the original story, Oda has carefully balanced Luffy's powers. So, it's hard to simply say one is more powerful than the other as they exist in different creative realms.
If Luffy ate a different devil fruit, his entire power set and character would change drastically. For example, if he ate a Logia type like the Smoke - Smoke Fruit, his fighting style would be more about evasion and stealth. He could turn into smoke to avoid attacks, and his stretching abilities would be gone. His crew might also have to adjust their battle strategies around his new powers.
If Naruto ate a Zoan devil fruit in fanfiction, his physical capabilities would surely change. Zoan fruits often enhance strength, speed, and endurance. Naruto, being a ninja with high - energy and a strong will, could use these new physical enhancements to his advantage. He might be able to run faster than before, jump higher, and take more hits in combat. Also, depending on the type of Zoan, he could have new forms to transform into, which could be used both for combat and for sneaking around.
In some fanfictions, Luffy's Devil Fruit is indeed considered the strongest. His Gum - Gum Fruit gives him unique abilities like stretching his body in incredible ways. In fan - created stories, these abilities can be enhanced even further, making him almost unbeatable.
Imagine Luffy ate a devil fruit that gave him the power to control minds. This would be a very different power compared to his current Gum - Gum abilities. His crew would have to trust him completely not to abuse this power. There could be ethical discussions within the crew. Also, in terms of leadership, Luffy might have an easier time getting others to follow his plans, but it could also create some tension if the crew felt he was relying too much on his mind - control powers instead of his natural leadership qualities.
If Naruto ate a mythical Zoan devil fruit in fanfiction, he might gain some really cool and unique abilities. For example, he could transform into a powerful and mythical creature, which would enhance his combat skills even more. His speed and strength could increase exponentially, and he might even gain new jutsu - like abilities related to the form of the devil fruit's creature.
The most unique aspect is the combination of two different universes. Naruto's world with its ninjas and jutsus, and the One Piece world with devil fruits. It creates a whole new set of possibilities for powers and storylines.
The uniqueness of 'no devil fruit Luffy fanfiction' lies in the fact that it challenges the traditional view of Luffy. Without his devil fruit powers, Luffy has to rely on his other qualities like his determination, his Haki, and his physical combat skills. It's interesting to see how he overcomes challenges in a different way.
Another possibility is a Devil Fruit that gives her the power of telepathy. Fem Luffy could then communicate with her crew without speaking, which would be very useful in stealth missions. She could also use it to read the minds of her enemies, getting an edge in battles. This would completely change the dynamics of her relationships with other characters in the story as well.