The move Zhaang Ye just used was from the Basic Saber Technique, a move called "Celestial River Inverted." Despite its domineering name, "Celestial River Inverted" was actually a completely unremarkable technique.
The technique itself was unremarkable, but the onlookers gasped in unison when they saw Zhaang Ye attack. "What powerful Sword Qi!"
As it turned out, Zhaang Ye had intended to make a show of his power. As he slashed, fueled by his True Qi, the tip of his Thick-Backed Saber actually produced a five-inch-long stream of Sword Qi!
Once a Martial Artist's Cultivation reached the Martial Arts Third Layer, they could channel True Qi into their weapons, causing them to emit various kinds of Qi Force. For example, sword-wielders could emit Sword Qi, and gun-wielders could emit Gun Force. Saber-wielders could also emit Sword Qi.
