The Sword of Immortal Slaying (诛仙剑) is a Primordial Slaughter Treasure that does not merely cut flesh but severs the very root of existence from the web of cause and effect. To wield it is to borrow the Dao’s most forbidden authority—the power to erase a being from the fabric of the cosmos. Every swing writes an irreversible scar on the wielder’s soul, and three such scars turn the master into a mindless slaughter puppet. This is not a weapon. It is a contract signed in blood and signed again at the cost of the self.
Definition
诛仙剑 Sword of Immortal Slaying 器属类型：先天杀伐至宝 Primordial Slaughter Treasure Artifact Tier: Zao Hua Xiong Qi (Creation-Forged Ominous Armament) Current Holder: Historically wielded by Tongtian Jiaozhu (通天教主); fate after the Investiture War is ambiguous in the tradition Current Status: The sword’s present location is unknown; some accounts suggest it was sealed by the Dao ancestors after the battle of the Immortal Slayi...
You know, there aren’t many weapons I’d describe as having a “soul-eating contract written in cosmic law” built right into the blade. But the Sword of Immortal Slaying—in Chinese, this thing is called Zhuxian Jian, and the name means exactly what it says—is one of them. Imagine a sword that doesn’t just cut through armor or magic, but actually reaches into the fabric of reality and snips out the thread that holds a being together. That’s its basic function. And then imagine that every time you swing it, it carves a permanent scar into your soul, and if you swing it three times, you stop being yourself and become a living extension of the sword’s own hunger. That’s not a movie villain’s weapon. That’s a real object from one of China’s most famous myth cycles. And the tradition insists: this thing existed.
If you’ve ever dipped into Chinese mythology—the Investiture of the Gods or the later xianxia adaptations—you’ve probably heard of the Sword of Immortal Slaying. It’s the headliner sword of the Jie Sect, the one that Tongtian Jiaozhu pulled out when things got really bad. In the stories, it’s always described as unstoppable, able to kill immortals, capable of bringing down even the most powerful beings. But what those stories often skip is the fine print: the blade is haunted by a trapped primordial beast soul that has to be fed the wielder’s own blood. And the wielder slowly loses their mind. The reason it’s so terrifying isn’t just the power—it’s the price tag you can never stop paying. Let’s walk through what it’s really like to own a weapon like this.
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