True Might of <Absolute Cut Sword Arts>

Only when Duncan's mentality improved to the next level did the true glory of the sword technique revealed itself to Duncan.

was one of the mainstay martial arts techniques of the Heavenly Demon Sect. What many members of the Heavenly Demon Sect didn't know was that this technique was added by the founder of the Heavenly Demon Sect. 

The founder of the Heavenly Demon Sect obtained this sword technique from a troublesome rival he slayed. Considering the reputation of the founder, any sword technique that could enter his eye is bound to be a bit profound.

Most cultivators of never realized its true potential. This sword art wasn't a complete technique. It was a single part of a larger technique that was present in the scripture pavilion of the Heavenly Demon Sect.