Many weapons in Naruto were “destroyed” because they were so powerful that they could ruin the plot. Take Sasuke’s sword Kusanagi for example.
Naruto Shippuden is the golden age of shinobi. This is a time when many new ninjutsu and weapons appear on the screen at the same time. Take Sasuke’s sword Kusanagi for example. Unfortunately, it upsets the balance of power in the story. And then in the end, the author nerfed the tragic sword, then let it “fly away”.
Compared to Orochimaru’s sword, it has a slight difference. The “row” of the snake elf is mind-controlled and lasts almost endlessly. Sasuke’s sword doesn’t have that much power. But it is just as dangerous as the “original” goods.
This was shown when Naruto and Team Kakashi came to capture Sasuke. At that time, he was driven out of his mind by hatred. Soon after, he dropped his sword to cut Sakura – who always loved him wholeheartedly. Yamato who was nearby also picked up the kunai in time. Even so, that kunai being severed was like dirt. Yamato almost lost his life there. Sasuke also explained that nothing can stop this blade.
But unfortunately, the ability of the sword Kusanagi is not “maintained” in the following parts. When he participated in the 4th Ninja World War, he had not broken a single weapon. I don’t know why this nonsense happens again. If you want to believe in the “logic” of Masashi Kishimoto, it is highly likely that the weapons of the enemy “war generals” like Obito and Madara are also “terrible”. As for the plot, this sword is really a threat that needs to be eliminated. Sasuke back then was so powerful that it exceeded all limits imaginable.
Even so, we cannot rule out the possibility that the Kusanagi sword was “overrated” when it first appeared. Maybe “cutting all weapons” only counts with normal weapons? If that was the case, it would make sense for it to not be able to cut the chakra weapons or swords of the Seven Swords of Mist. Unfortunately, after all, this is just a hypothesis about the way the author thinks Naruto.
In any case, it was in fact badly nerfed during the 4th Ninja World War. And the initial impression of the sword had completely vanished. Now, only Sasuke is the only thing special in the eyes of the fans. No one will remember the special point about it anymore. And like many other defective products, the Kusanagi bar will have to “lay back”. Accordingly, the “grave” the author prepared for it is the 4th total war of the Ninja world. Rest assured, Sasuke has found a new sword to use in Boruto.
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