It's a pity that now in Tie Dan's hands, only the secret refining method of the Child Sword lineage remains, and Yu Hengzi's arms and legs are severed, leaving only a quarter of his body. It's really unclear how to use the sword light of other meridians.
As for the Yao Guang lineage, it mainly severs evil to protect the Dao. It was heavily damaged back when it defeated a branch of the Xiaoyao Sect, likely intended to specifically counteract the same path of the Mystic Sect and the Human Clan cultivators.
After all, humans don't have the thick blood like demons, there's no need for overly high attack power, and excess damage doesn't count for DKP, which is pointless. So one can entirely split a stream of sword power into multiple streams for battle.
