How to Unlock
Complete the Raven's Testament Wandering Tale in Heaven's Threshold. In Wu Zhi's cave, read the inscription, use a healing Martial Art beside the Ancient Bronze Sword, pull the sword free, and give it to Wu Zhi.
Effect
Stores excess healing and converts the surplus into a sword/Qi Edge attack. Breakthroughs extend the interaction to more party healing.
Best Use
Excellent for Panacea Fan and Soulshade Umbrella builds that frequently overheal in group content.