Every set of swordsmanship had a level rating next to it. This was a label added by the teacher so that they could better choose the appropriate swordsmanship. This teacher was quite thoughtful.
Swordsmanship was not the ultimate goal, but a secondary process to supplement training and learning. In fact, Xiao Lin did not care much about what sort of swordsmanship he chose, and from the labels, the highest level of these was only Black-Iron or Bronze in rank. In other words, these were routines that would be obsolete sooner or later.
Therefore, Xiao Lin's focus was still on the effects of these swordsmanship studies. For example, certain types of swordsmanship could enhance the flexibility of the body, and certain types could improve reflexes. With the continuous improvement of attributes, for Black Iron-ranks, each attribute actually provided meaningful empowerment.