Is his mind that resilient? No, even a formidable mind would crumble against a fraction of the Mental Black Hole's power. 

Lu Changsheng narrowed his eyes, having seen through Hong Shan's defense. 

"You possess a treasure that wards off mental attacks, don't you?" 

Hong Shan made no response. Instead, he swept out his hand, and several beams of light instantly flared up. Another divine technique was being activated. Then, another one followed, then another, and another. In a heartbeat, seven or eight supreme compound divine techniques surged forth in a dense torrent and blotted out the sky. Each of those techniques was on par with Lu Changsheng's Flame Current. 

What supreme Dao Foundation cultivator or Dao Lord could possibly withstand such a fearsome onslaught?

This was the source of Hong Shan's strength. With nine Principles, he could combine them at will into a great many divine techniques, and he happened to have cultivated many supreme compound techniques, likely several dozen in all.

With sheer numbers of techniques alone, he could simply...