Special Secret Technique?

Once the blade formed and then shot towards the aged, Sky Lord-stage cultivator at a great speed, the cultivator couldn't even block the attack when it suddenly pierced through his body, cleaning cutting him in half that then fell into the lake far below.

And since the attack was one that moved so fast and possessed a great degree of sharpness despite not having sharpforce energy, it started to cleanly cut through the cultivators one after the other till the others in it path had to shoot far away from it to escape their quick death.

At this moment, about twelve cultivators including the aged cultivator making the numbers thirteen, had fallen into the lake far below them. This then caused the cultivators to look at Alex with great shock and disbelief in their eyes. They couldn't believe that an ordinary attack from this boy had killed a small fraction of them.

Then dread immediately set into their heart.