The giant dragon (1)

Tang Zhen's spirit immediately jolted after he absorbed the refined trace of the evil God's mental energy. His face was filled with enjoyment.

"The secret technique provided by the ghost bank is indeed not bad. After devouring the spirit energy of a high-level cultivator, my cultivation speed has increased by many times. The only pity is that the side effects are too great!

However, I've already mastered the law of fire, and can effectively refine the impurities in my spiritual force, reducing the side effects of absorption to a minimum. Therefore, this method of increasing cultivation is completely feasible!"

Tang Zhen muttered to himself. However, he was thinking in his heart. If he were to refine the main body of this evil god, to what extent would his strength increase?