Beiting Huang had not anticipated that by using this secret technique, his strength would continually improve as well. As the strength of the bolt of lightning increased, the energy granted to him by the rules of heaven and earth filled his body. After fully refining it, he could feel that he only needed a tiny opportunity to break through to the Great Lord level.
By the time Beiting Huang stepped out of the space again, Thunderbolt had already circled the mountain and returned. It transformed into a streak of Lightstream and burrowed into the space. Having acquired a massive amount of energy, it needed to hibernate in order to complete its final evolution.
The same went for the magical beasts like bolt of lightning. As a result, the original batch of magical beasts Beiting Huang had first made contracts with, were now unusable.
However, fortunately, there was Agul, Beiming Fengcang, and others.