Well, it could make Naruto's fighting style more aggressive and direct. With Zabuza's sword, Naruto might incorporate more slashing and close - combat moves. He could use his shadow clones more effectively in combination with the sword, like having clones surround the enemy and then attacking from different angles with the sword.
Naruto's fighting style would be drastically changed. Firstly, he'd have to learn how to properly wield a sword, which is a whole new skill set. He might train with Kakashi or some other sword - expert in the village. With the sword, he could add a new dimension to his combat. For example, he could use the sword to deflect incoming attacks and then counter - attack with his own jutsu. This would make him a more well - rounded fighter, as he can now engage in both long - range jutsu battles and close - range sword fights.
If Naruto inherits Zabuza's sword in the fanfiction, his fighting style would likely become more versatile. The sword gives him a new weapon option. He could start using kenjutsu techniques. Maybe he would develop his own unique jutsu that combines his chakra control with the sword, like infusing it with Rasengan - like chakra for a more powerful strike.
His fighting style would likely become more melee - focused. Naruto is used to fighting from a distance with his jutsu, but with Zabuza's sword, he would need to get up close and personal. He might start to combine his ninjutsu with sword strikes. For example, he could use a clone to distract an enemy while he closes in with the sword for a surprise attack.
Some of his friends might be worried at first. They know Zabuza was a dangerous enemy before. But Naruto could convince them that he'll use the sword for good.
Maybe he defeated Zabuza in a battle and took it as a trophy.
Naruto might also develop a more ruthless edge to his fighting. Zabuza was a cold - blooded killer in a way. While Naruto wouldn't become evil, he could be more decisive in combat, not hesitating as much when it comes to taking down opponents. He may also learn some of Zabuza's sword - fighting skills, adding a new dimension to his fighting style if he combines it with his kunai and shuriken use.
Naruto might incorporate more stealth elements from Oliver Queen. His usual in - your - face combat style could become more calculated, with Naruto using the environment to his advantage just like Oliver does with his archery. He may also start using projectiles more effectively, similar to Oliver's arrows.
Naruto's fighting style might incorporate more of Killer Bee's unique techniques. For example, he could start using some of Bee's swordplay skills if he's trained in that. Also, Naruto might adopt a more fluid and acrobatic fighting style similar to Bee's. His use of chakra could become more refined, like how Bee can use his Tailed Beast chakra in creative ways.
Having a sword would likely make Naruto's fighting style more versatile. He could use it for defense as well as offense. Maybe he would learn new jutsus that are specifically designed to enhance the power of the sword, like infusing it with chakra to make it cut through stronger defenses. This would also change his strategic approach in battles, as he now has a melee weapon at his disposal.
A minor character like a blacksmith's apprentice could find Zabuza's sword. Instead of using it for fighting, they study it closely. They discover a unique metal alloy in the sword that they use to create new and improved weapons for their village. This not only changes their own fate as they become a renowned blacksmith, but also the fate of the village as they now have better weapons to defend themselves.
The story could explore how Naruto adapts to having a weapon like Zabuza's sword. Since Naruto is used to his own hands - on combat and ninjutsu, the sword would be a new addition. He would have to train to master it. Maybe he'd seek out old friends or allies of Zabuza to learn more about the sword's history and proper use. This could open up new storylines and relationships for Naruto in the fanfic world.
If the Dragon Sword has special abilities, like being able to absorb chakra, Naruto's fighting style would change drastically. He could start using it to drain his opponents' chakra during battles. This would force him to get closer to his enemies, making his fighting style more aggressive and in - your - face compared to his usual ranged attacks.