"However, the Taiyin Sword Move was truly too domineering. To begin with, the energy consumption was extremely vast, even among sword techniques in the Nascent Soul Realm it was known to deplete mana, and it instantly exhausted all the potential energy stirred by the Dragon Fetus Feather Transformation Pill."
"Secondly, such an intense sword move inevitably left traces of Taiyin Sword Light within one's body, causing hidden injuries. Li Fan could distinctly feel six sword marks imprinted within his divine palace. If these accumulated, they would affect him during meditative practices and could even damage his meridians. Furthermore, they could only be resolved using Taiyin true essence, hence Xuantian had hesitated to teach him this lethal move."
