He could learn Zabuza's signature water - style jutsu, like the Hidden Mist Technique. This would give Naruto an advantage in terms of creating diversions and hiding his movements during battles.
In this fanfiction, Naruto might gain some unique and deadly water - style techniques from Zabuza. Zabuza is a master of assassination and water - style jutsu. So Naruto could become more stealthy and proficient in close - combat water attacks. He may also learn about the darker side of the ninja world from Zabuza, which could make him more cynical or more understanding of the different kinds of shinobi out there.
In a fanfiction where Naruto is trained by Zabuza, Naruto would gain a whole new perspective on fighting. Zabuza's style is very different from what Naruto has learned so far. Zabuza could teach Naruto about the importance of misdirection in combat, like how he uses the mist to hide his movements. Naruto might also pick up on Zabuza's ability to analyze an opponent's weaknesses quickly. This training could potentially make Naruto a more well - rounded fighter, able to adapt to different situations more easily. However, he would need to be careful not to let Zabuza's more cut - throat approach overtake his own kind - hearted nature.
One possible plot could be that Naruto, under Zabuza's training, learns new and unique water - style jutsu. Zabuza, being a master of silent killing, could teach Naruto stealth techniques. Naruto might also gain a different perspective on the shinobi world from Zabuza, who has a more ruthless view compared to his usual teachers. This could lead to internal conflicts within Naruto as he tries to balance his own values with the new knowledge.
If trained by Zabuza, Naruto would probably grow in terms of his combat intelligence. He'd learn to read his opponents better. His personality could become more stoic, as Zabuza is not one for excessive emotions. But Naruto would also bring some of his own warmth to Zabuza's cold - blooded training regime. He might try to humanize Zabuza and in the process, become a more complex character with a blend of Zabuza's ruthlessness and his own compassion.
One possible plot could be Naruto learning Zabuza's unique water jutsu techniques. For example, he might master the Hidden Mist Jutsu which Zabuza was famous for. This would give Naruto an edge in combat, especially in stealthy attacks.
Well, one possibility is that Naruto gets Zabuza's sword and tries to master its use. He might face challenges in understanding the unique abilities of the sword. Maybe he initially struggles to wield it properly because it's a different type of weapon compared to his usual ninja tools. But as he trains with it, he discovers new fighting techniques and becomes more powerful.
Naruto may become more calm and composed. Itachi's presence and training methods would likely instill a sense of discipline in Naruto. He'd probably be less impulsive in battles and think more before acting.
In this fanfiction, Naruto might gain some unique jutsu skills from Itachi. Itachi is extremely powerful, so he could teach Naruto advanced genjutsu or ways to better control his chakra. For example, Naruto might learn how to quickly break free from strong genjutsu attacks, which would be a great advantage in battles against tough opponents.