C45 Heavenly Eye Thaumaturgy

He was certainly familiar with the technique.

A Top Grade Level 3 cultivation method, it was specifically designed for honing the Heavenly Eye.

For them, the Heavenly Eye was almost a myth. In distant foreign lands, members of great sects and noble houses had mastered this art. It was rumored to be the most coveted ability among those aspiring to become Earthly Treasure Masters