He could learn powerful sealing techniques. Kushina was known for her sealing skills, and she could pass them on to Naruto. This would give Naruto an advantage in battles and also in containing the Nine - Tails' power.
Well, one possibility is that Kushina might teach Naruto some unique Uzumaki clan techniques. For example, she could pass on her knowledge of sealing jutsus. Since she was a powerful kunoichi, she could train Naruto in combat skills that are specific to the Uzumaki style, which would give Naruto an edge in battles.
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.
In this fanfiction scenario, Naruto's training with Minato and Kushina would be intense. Minato, being a prodigy, would push Naruto to his limits in terms of combat skills and quick decision - making. Kushina would focus on Naruto's inner strength and the connection to his Uzumaki roots. This could result in Naruto having a more well - rounded set of skills from the start. He might not struggle as much with basic jutsu control and could potentially even master some advanced Uzumaki - specific techniques earlier. For example, he could have a better grasp on sealing techniques which are a big part of the Uzumaki clan's abilities. This would give him an edge in battles against opponents like Orochimaru or the Akatsuki members who often use or are affected by sealing jutsu.
Well, if Naruto was trained by Kushina in fanfiction, it could make him a lot more in - touch with his Uzumaki heritage from the start. He might learn unique Uzumaki jutsus earlier, like some powerful sealing techniques. Also, Kushina's feisty personality could be passed on more directly, making Naruto even more determined and head - strong in a different way than in the original story.
Naruto's personality would be a blend of his own natural exuberance and the more composed natures of Minato and Kushina. He might be less impulsive as Minato's strategic thinking would influence him. Also, Kushina's strong - willed nature would make him more determined and less likely to be swayed by others' negative opinions.
One possible reason could be for Naruto's protection. Maybe she thought by banishing him from a certain place or situation, she could keep him away from a hidden danger that she knew about. For example, there might be a powerful enemy targeting Naruto specifically, and she believed that by making him leave, he would be harder to find.
Another aspect could be that the fanfiction delves into how Kushina's presence affects Naruto's relationships with others. For instance, his relationship with Sasuke could be different. With a strong maternal figure in his life, Naruto might be more stable emotionally and be able to approach Sasuke in a more understanding way, which could potentially change the whole dynamic of their rivalry and friendship.
Well, Naruto would probably gain some really unique magical abilities. Fairy Tail mages are known for their diverse magic, and Naruto could combine his chakra skills with something like Fire Magic or Celestial Magic. He might become even more powerful in combat, with new ways to attack and defend.
Naruto would gain better combat awareness. Kurama's experience in battles can be passed on to Naruto. He'll be able to read his opponents better, know when to attack and when to defend. This will make him a more formidable opponent in combat situations.