This is the Heavenly Tribulation, attracted by the 'Positive Electron' carried by the Ming River Ancestor's 'Negative Electron'.
In the Netherworld King Hall of the opponent, there are hundreds of thousands of Yin Souls, and the Heaven and Earth's power that most restrains Yin Souls is Thunder, so the first Heavenly Tribulation attracted is a Thunder Tribulation.
In addition, the cultivation technique of the Ming River Ancestor is primarily yin and evil, so it is also possible to attract a Fire Tribulation.
The Lifebound Magical Treasure Netherworld King Hall suppresses the Primordial Spirit and uses Illusion Technique to establish Reincarnation; it might also attract a Heart and Spirit Tribulation!
Ning Qingman knew about these in advance.
Back in that village, she had actually seen a Heavenly Tribulation once.
