First of all, Naruto's world is different from the Marvel universe. But if he got all the Infinity Stones, he might use the Power Stone to enhance his already strong Rasengan. Imagine a Rasengan with the power of an entire universe behind it. He could also use the Time Stone to go back in time and prevent some of the tragedies that happened in his own world, like the death of his parents.
Naruto getting all the Infinity Stones would be a game - changer. He is a character known for his willpower and determination. With the Infinity Stones, he could reshape the entire ninja world. He could use the Space Stone to travel instantly to any location in his world, which would make him an even more formidable opponent. He could also use the Mind Stone to influence the thoughts of his enemies, making them see the error of their ways and perhaps end conflicts without bloodshed. In a sense, he could bring about a new era of peace in the ninja world, but he would also have to be careful not to let the power corrupt him.
Naruto's chakra control and the Infinity Stones' powers could create some unique combinations. For example, he could use his chakra to better manipulate the Infinity Stones. His ability to use shadow clones might be enhanced by the Mind Stone, allowing him to create clones with different mindsets or abilities.
Maybe the enemy would see Naruto's injury as an opportunity to finish him off. But Naruto has a habit of surprising his foes. Even in his hurt state, he could pull off some unexpected jutsu. His friends could also use this situation to set up a trap for the enemy. For example, they could make it seem like Naruto is more injured than he actually is, luring the enemy into a false sense of security before attacking.
Well, he would probably become extremely powerful. He could use the Time Stone to go back and change certain events in the wizarding world, like preventing some of Voldemort's evil deeds. With the Power Stone, his magical abilities might be amplified to an unimaginable level, allowing him to defeat any dark wizard with ease.
In the 'naruto gets all the tailed beasts fanfic', Naruto's life would change completely. He would no longer be just an ordinary ninja with a lot of potential. Having all the tailed beasts within him means he has access to an unimaginable amount of power. He could potentially unlock new forms or abilities that are a combination of his own and those of the tailed beasts. This could make him a force to be reckoned with not only in his own village but across all the ninja villages. His relationships with his friends might also change. They might look at him with a new sense of awe and respect. And Naruto would have to learn to control this new - found power, which could be a huge challenge in itself. But if he manages it, he could reshape the ninja world in ways no one has ever imagined.
In this fanfiction scenario, Naruto finding the Infinity Gauntlet could lead to some interesting battles. He could use it against his toughest enemies like Madara or Kaguya. But he'd also have to deal with the fact that the Infinity Gauntlet comes from a different universe with different rules. He might struggle to control all the power it holds at once.
Well, he'd probably become extremely powerful. With the Infinity Stones' powers, Naruto could potentially control time, space, reality, etc. His already impressive ninjutsu skills combined with the stones' abilities would make him nearly unbeatable. He might be able to create new jutsus that are based on the powers of the stones, like a time - stopping Rasengan or a reality - warping Shadow Clone jutsu.
The dragon sword could be a key to unlocking an ancient prophecy in the Naruto universe. Naruto, with the sword in his possession, might be seen as the chosen one to fulfill this prophecy. It could involve bringing peace to a long - warring region or uniting different ninja clans. He would have to go on a journey to understand the true meaning of the sword and his role in the prophecy, facing many trials and making new allies along the way.
Naruto getting kidnapped by Orochimaru would be a really dangerous situation. Orochimaru could start by putting Naruto in some sort of chakra - suppressing device. This would limit Naruto's ability to use his Nine - Tails power. Then, he might try to implant some of his cursed seals on Naruto, which would give him more control over Naruto. But Naruto has his own allies within himself. The Nine - Tails, despite their rocky relationship, might help Naruto out in this situation. Also, Naruto has the memories of all the people who care about him. He'd draw strength from those memories and keep his hope alive, waiting for the moment when he can break free and return to his friends and the village.
The Raijin Sword could also have some sort of connection to Naruto's chakra or his Nine - Tails power. It could potentially unlock new forms or power - ups for him. For example, the sword's energy could combine with the Nine - Tails' chakra, creating a unique and extremely powerful attack.
In this kind of fanfiction, Naruto might become very distrustful. He could isolate himself from his friends for a while as he tries to deal with the pain of being cheated on. Maybe he would focus all his energy on training to forget about the heartbreak.