Well, if Naruto becomes Clayface, he would gain the ability to shape - shift like Clayface does. This could make him a more versatile fighter. He might be able to blend into the environment, spy on enemies more easily, or even create decoys of himself to confuse opponents during battles.
Another possibility is that Clayface somehow gets transported to the Naruto universe. The shinobi in the Naruto world would be very confused by his abilities. Clayface could try to blend in by mimicking the appearance of different shinobi, but his lack of chakra would give him away. Naruto might see through his disguise easily due to his own perceptive skills.
In a more in - depth interaction, if Clayface were to get injured in the Naruto universe, Naruto could offer to help him. Naruto's knowledge of medical ninjutsu might be able to heal Clayface in some way. This would create a bond between them as Clayface would be grateful. They could then exchange stories about their respective worlds, with Naruto telling Clayface about his life as a shinobi and Clayface sharing his experiences in Gotham.
The story could start with Naruto being exposed to some strange new chakra or magic that transforms him into Clayface. At first, he might struggle to control his new form, accidentally scaring people in the village. But as he learns to master it, he starts to see the potential in his new abilities.
Writing or seeking adult fanfiction involves inappropriate and often unethical content. It is better to focus on family - friendly or general - audience Clayface fanfiction that can be found on many mainstream fanfiction platforms. These usually explore his character, powers, and his role in the Batman universe in a more positive and acceptable way.
Yes, there are likely some interesting ones. You can start by looking on fanfiction websites. Some might explore Clayface's character from a new perspective through a female character's eyes or might create unique storylines involving a female character and Clayface's powers.
One possibility could be that Naruto is drawn to boxing because of its physicality and the determination it requires. He might see it as a new way to test his strength and endurance outside of ninja battles. Maybe he starts training with a local boxing coach who sees his potential and helps him develop his skills.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfiction across various fandoms, and you can use the search function to look for 'female Clayface' fanfiction. Fanfiction.net is also a possibility, though the tagging system there might be a bit different.
One possibility is that Naruto, with his determination, could adapt Zeref's powers in a unique way. Maybe he'd use Zeref - like magic to enhance his ninjutsu. For example, he could infuse Zeref's death - based magic into his Rasengan, creating a more powerful and dangerous attack. Another aspect could be Naruto's personality change. If he becomes influenced by Zeref, he might become more brooding and less of the cheerful ninja we know. However, his core values of friendship and protecting the village would still likely be there, just warped a bit by Zeref's dark nature.
One possibility could be that Naruto is transported to the Mortal Kombat universe and through some magical or technological means, he takes on the powers and identity of Sub - Zero. Maybe he has to adapt to the new combat styles and the brutal nature of the Mortal Kombat world while still retaining some of his Naruto - like traits such as his determination and never - give - up attitude.