C407 Profound Heavy Sword Technique

At night, Zachary settled into a cross-legged meditation, circulating the Medical Saint Scripture. His aura ebbed and flowed, teetering on the edge of an explosive power ready to burst forth from his body.

Puff!

Suddenly, his aura surged, breaking through the middle stage of Foundation Establishment as effortlessly as a hot knife through butter.

"Hu..." After a long moment