The Technique of Physical Refinement was a strange technique that would allow a cultivator to formulate clones.
If based purely on realm, the technique couldn't be considered the highest. In terms of capabilities, the technique couldn't be considered the best either. However, in terms of usability and versatility, it was without a doubt one of the best techniques to learn. It was also extremely suitable for Ling Xian's situation.
This technique would allow one to generate a very special clone which was not easily breakable like a normal clone. It would create a clone with flesh and blood – an exact replica of the actual human. The only difference was that the clone would not have the same level of cultivation as the original.
But, this was also one of the things that make this technique very special.