This mutated bolt of tribulation lightning was a combination of the power of Xuan Nu Sect's Skylark's demonic tribulation and the heavenly tribulation drawn in by Fellow Daoist Banknote. Two different kinds of tribulations with different attributes intertwined and integrated with one another like Yin and Yang.
At the same time, after the two different kinds of heavenly tribulation fused, they transformed into a sword.
This kind of attack was similar to the phenomena that great masters would give rise to during their speeches. This sword of mutated tribulation lightning was not only a combined attack of the demonic and heavenly tribulation, but also a phenomenon of heaven and earth. Whether it was a demon of the Netherworld or a human practitioner, this kind of tribulation would be deadly for them.
