He took out the Fourth Grade Top-level Artifact Tribulation 'Heavenly Strike Thunder Hammer' and then summoned the Heavenly Ghost.
The massive figure of the Heavenly Ghost appeared. If he hadn't set up a Formation to isolate this area within the Taichu Cave Heaven, cultivators in other areas of the Taichu Cave Heaven might have been frightened by the Heavenly Ghost's aura.
The peak of the Fourth Grade Late Stage spiritual entity, and one carrying immense spiritual energy at that, has a spiritual suppression effect even on Great Cultivators of the same level, not to mention the cultivators working within the Taichu Cave Heaven.
The strength of these cultivators is generally not very high, with a few in the Nascent Soul Early Stage, but most are Golden Core cultivators.
