Also, in the past, they might have to adapt their fighting styles. Naruto, used to fighting with his friends and allies from his own time, now has to work with different ninja in the past. He may have to learn new teamwork strategies and combine his abilities with those of the past - time ninja in a different way. Tsunade might also have to rely more on her brute strength and less on her developed medical and strategic skills from the future, at least until she can adjust to the past situation.
Orochimaru's experiments and his knowledge of forbidden jutsu would be far ahead of the time he travels back to. He could use this to his advantage, perhaps by creating new techniques based on the limited knowledge of the past. However, he also has to be careful not to change the future too much as his actions in the past could have unforeseen consequences for his future self.
When the Konoha 12 time - travel to the past, their abilities would change significantly. Take Rock Lee for example. In the past, there might be different training methods that could further boost his physical strength and taijutsu skills. He could learn from the masters of old and bring back new techniques. For Ino, her mind - transfer jutsu might work differently in the past due to the different mental states and chakra signatures of the people then. And for Shikamaru, his strategic thinking would have to adapt to the different political and combat situations of the past. Their abilities would not only change in terms of power but also in how they are applied in the context of the past's ninja world.
Their relationship could become more of a mentor - mentee in the past. Tsunade has a lot of knowledge and experience that Naruto could learn from. Since they are in a different time, they would rely on each other more. Naruto would look up to Tsunade even more as she uses her skills to navigate the challenges of the past.
Well, in the past, Naruto's ability to use Sage Mode might change significantly. In his own time, he has a certain way of gathering natural energy. But in the past, the distribution of natural energy could be different. He might have to learn a new method from the Sage of Six Paths himself. Also, his Rasengan could be improved. He could combine it with ancient jutsu knowledge from that era, creating a more powerful and unique version of the Rasengan. And his social abilities, like his knack for making friends and uniting people, would also play a big role. He could use these to gain allies in the past, which in turn could help him develop his abilities further as he would have more resources and knowledge at his disposal.
In the past, Team RWBY's abilities could change in various ways. Ruby's semblance of speed would give her an edge in battles, but she might also attract unwanted attention as people in the past may not be used to such swift movements. Weiss's Glyphs could potentially be more powerful in the past if the Dust in that era has different properties. Blake's ability to create clones could be misinterpreted as some kind of dark magic, causing her to have to be more careful about using it. Yang's power might be more difficult to control as the technology to understand and manage it might not exist, making her a bit of a loose cannon in the past.
At first, Tsunade might be skeptical of Naruto. But as they face challenges together during their time - travel, she would start to see his value. Naruto, on the other hand, would be in awe of Tsunade's potential at a young age. Their relationship could develop into a strong friendship as they rely on each other's skills. For example, Naruto could protect Tsunade from physical threats while she uses her medical skills to heal him when he gets injured.
The combination of Naruto and Madara's abilities would bring about a significant shift in the power balance of the world they time travel to. Naruto's positive influence and ability to inspire others, combined with Madara's strategic mind and combat skills, could lead to a new era of peace and cooperation. Their combined ninjutsu could also revolutionize the way ninjas in that time train and fight. For instance, Naruto's Rasengan combined with Madara's fire - based jutsu could create a whole new type of attack that others would try to emulate.
In the past, Naruto could be seen as a strange and powerful figure to Tsunade. Since he has skills and knowledge from the future, he might initially seem like a threat. But as they start to work together towards a common goal, like saving the village from a past disaster, Tsunade would start to trust him. Their relationship would develop from a cautious alliance to a true friendship, and perhaps even something more, as they rely on each other in the face of difficult situations in the past.
Tsunade would probably be very suspicious at first. Naruto suddenly appearing from the future? It's not something that happens every day. She might think it's some kind of enemy's trick or a genjutsu.
Kakashi's abilities would likely be enhanced in the past. He has all the knowledge and skills he's gained in the future. So, his combat skills would be more refined. His Sharingan would be even more powerful as he would know better how to use it. He might also be able to teach his younger self some new jutsu that he learned over the years.