Song Lingtian's greatest mastery was the Profound Gold Sword Qi. Executing this technique required absorbing the Qi of Geng Metal and storing it in his dantian. It possessed terrifying might, incredible speed, and unmatched sharpness, but each use placed an enormous burden on him. Currently, his spiritual power allowed him to use the Profound Gold Sword Qi three to four times in total, while his dantian held enough Geng Metal Qi to unleash it ten times.
Sword Qi was even sharper than sword radiance, and its range was far broader. The ability to manifest Sword Qi was the hallmark of becoming a Sword Immortal.
This meant that Song Lingtian was already a genuine Sword Immortal.
Chapter 93