He might infuse the sword with his chakra. Since Naruto has a large amount of chakra, he could make the Buster Sword glow with his unique chakra color. This would not only make the sword stronger but also give it new abilities. For instance, the chakra - infused sword could cut through stronger defenses or even repel enemy ninjutsu.
Well, in some fanfictions, Naruto might get the Buster Sword through a special encounter. Maybe he stumbles upon it during a mission in an ancient ruin. Another possibility is that it could be given to him by a powerful ally who has connections to the world where the Buster Sword originally comes from.
It could have the power to cut through almost anything. Since Naruto is a powerful ninja, the sword might inherit some of his chakra's strength, allowing it to slice through thick barriers or even powerful jutsu defenses.
In some fanfictions, the Buster Sword could be enchanted. So Naruto might gain abilities like being able to send out energy slashes from the sword. These slashes could travel long distances and be very powerful, capable of taking out multiple enemies at once. Also, it could have a special connection to Naruto's chakra, allowing him to channel his chakra into the sword more effectively and use it in new and creative ways during combat.
One possible fanfiction could be about Harry Potter finding the Buster Sword in the Forbidden Forest. Maybe it was left there by a wizard from a far - off land who had visited Hogwarts long ago. Harry discovers its unique powers and has to learn how to use it while still dealing with Voldemort's threats.
One idea could be Naruto finding the Buster Sword in a hidden ancient ninja cache. He then has to learn how to use it in his own unique style, combining his chakra powers with the brute force of the sword.
The Buster Sword could be a symbol of a new era in a Harry Potter fanfiction. It might be brought into the wizarding world by a Muggle - born wizard who has an unusual connection to non - wizard weapons. This could create a stir among the pure - blood wizards who are not used to such foreign objects in their magical realm.
Another possibility is that Naruto gets the materials as a reward. He could complete a really difficult mission for a blacksmith or a village elder. In return, they give him the unique and strong materials required to make the buster sword. He would then use his own creativity and some basic forging knowledge to shape it into the buster sword.
Well, 'naruto mega buster fanfiction' could be about a character in Naruto who discovers or creates a mega buster. This could lead to all sorts of new storylines. For example, they might use it to fight a powerful new enemy, or it could cause some sort of conflict among the ninja clans because of its power. Maybe it's a story that focuses on how this mega buster changes the balance of power in the Naruto world and how the different characters react to it.