So here is a challenge for all you writers needing a prompt, looking for a new idea, or just trolling through and find this interesting.
We all know that the seven swords of the hidden mist village are one of a kind weapons, whose forging techniques were lost to time. But what if they weren't the only legendary weapons of their caliber. Now go a step further, and NOT make this new weapon a sword, make it a knife, a spear, hell make it a coat or glove or something weird, and then, give it to a character, give it to a real character, give it to an oc, just make sure that it is powerful (when used correctly) and remember that samehada, one of the swords mentioned above, was semi sentient, so think about making your weapon also smart. This weapon does not even need to be the only one of its kind, there were seven swords after all.
Thats all, review or pm me if you decide to take up this challenge.