In this fanfic, Naruto's training might also involve more mental conditioning. He has to face tougher challenges mentally, like solving complex strategic problems during combat simulations. This would not only make him a better fighter but also a smarter ninja, as he learns to think on his feet and anticipate his opponents' moves better.
Well, he might start with more intense physical drills. Like running longer distances with heavier weights. This would build his stamina and strength much faster than before.
One possible trainer could be Kakashi. He might take Naruto's training more seriously and push him to his limits. Kakashi has a lot of experience and knowledge, and he could use more extreme methods to train Naruto.
Meditation could be added as a daily warm - up. Naruto could start his training by clearing his mind, which would help him focus better on the physical aspects later. For instance, before practicing his Rasengan, he meditates for a few minutes to get in the zone.
Well, Kakashi might introduce Naruto to more strategic ways of fighting. For example, he could teach Naruto how to better analyze his opponents before attacking. Naruto, who was previously more impulsive, may start to hold back and look for the right moment to strike, like Kakashi does with his Sharingan.
Naruto would become more confident in his abilities. With Kushina's training, he would have a better understanding of his Uzumaki heritage and the power that comes with it. This new - found confidence would show in his battles and his interactions with others.
It also improves Naruto's skills a great deal. He becomes better at combat and using his ninja techniques. For example, his Rasengan might be more powerful or more easily controllable after Iruka's training. Moreover, Naruto's confidence grows under Iruka's guidance. He no longer doubts himself as much and is more willing to take on challenges.
The Hokage, like Tsunade or Kakashi, could be the ones training Naruto. They know Naruto well and have a lot of knowledge and skills to pass on.
The training by death would likely toughen Naruto up both physically and mentally. He'd probably have a darker, more determined edge to his character. He might be more solitary in his training, spending more time alone to master the skills death has taught him. This could make him seem a bit more distant to his friends initially, but in the long run, it would make him a stronger and more reliable ally.
Naruto might become more calculating. Urahara is a very strategic person, and under his training, Naruto could start thinking more before acting. For example, instead of just rushing into a fight, he'd analyze the situation first.
Naruto's morality could be somewhat skewed. Orochimaru has a very different view on right and wrong compared to Naruto. So, Naruto might start to question some of his previous beliefs. For example, he might be more willing to use dangerous or forbidden jutsus if it means achieving his goals. He'd also probably be more distrustful of others, as Orochimaru always has ulterior motives. This would be a big change from the Naruto who was always so quick to trust and befriend people.
The training could also change Naruto's mental approach to battles. Since Ameyuri Ringo may have a different combat philosophy, Naruto might start to think more strategically. He could learn to analyze his opponents better before jumping into action. This would make him a more well - rounded fighter. Instead of just relying on his brute strength and the Nine - Tails' power, he could use his wits more often.