The Purple Cloud Divine Thunder ranks second among the Twelve Divine Abilities of Mingcang Sect, only behind the Dragon Coiled Great Thunder Seal. However, Zhang Yan previously discovered in his magical duel with someone that the power of this ability wasn't very formidable, at least when compared to the Nine Mountains Clear Sound and Bright Three Yang Qi, it still falls short.
Although this technique has some effectiveness in restraining evil demons, compared to its grand reputation, it seems somewhat undeserving.
In the past, when he used this technique, he relied on his superior mana to gather dozens or even hundreds of divine thunder strikes, forcing the opponent to temporarily retreat. But if someone else were to use it, it would be a waste of mana.
At that time, he felt this divine ability couldn't be so simple and must have unknown aspects yet to be discovered. It wasn't until receiving the sect leader's bestowed spell that his conjectures were validated.
