Yang Zhi’s Heirloom Saber is the ancestral blade he reluctantly offers for sale in Water Margin. It carries his family pride into the moment when his hopes of returning to official service have failed.
Chapter 12 explains that his money has run out and the saber is his remaining resource. His claims for its remarkable edge draw the attention of the bully Niu Er. Demonstration gives way to harassment and a fatal confrontation, after which Yang Zhi surrenders himself.
The blade is memorable because it joins martial inheritance with humiliation and frustrated ambition. Its sharpness belongs to the story’s account of an exceptional weapon; no separate system of magical powers is needed to explain its importance.
