C2877 Nine Forms
After all, it was not so easy to master the Snow Sky Nine Techniques. They were a very strong set of Spirit Techniques. Even when Heng Yanlin was studying the Snow Sky Nine Techniques, he knew how profound they were.
As such, for Mu Shishan to be able to comprehend the second style of the Nine Techniques of the Snow Heavens, the Thousand Snow Sword, in such a short amount of time