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Soft Snake Sword is a main weapon in Phantom Blade Zero. It is awarded for defeating Wu Lengshuang at Mandate Encampment, an encounter reached during Secrets of the Baishan Sect.

How to get Soft Snake Sword

Begin Secrets of the Baishan Sect by speaking to Lanlan among the women on the bridge south of the Outlaw Trap Bell. The request leads toward the Mountain Lodge at Mandate Encampment.

Proceed to The Confinement Bell and descend the nearby chained rope to encounter Wu Lengshuang. Defeating her awards Soft Snake Sword and a Blackstone Fragment.

Quest continuation

The quest continues beyond this reward. Examine Bi Taotao's body, then use the Training Grounds Key to reach Yubi. That later battle awards Baishan Stormswords and Broken Vessel, which are separate rewards from the Soft Snake Sword.