Is It Worth It?

Bloodline powers were unique to natives of the Realms of Gods, and Kuang Tian Zheng naturally had one as well.

Kuang Tian Zheng's bloodline power was rather unique. Unlike most people, there were two uses for his bloodline powers. Not only could his bloodline power passively boost his strength, but he could damage half of his Heavenly Veins in exchange for explosive strength. Naturally, this power came with a condition. He could only strike once before his strength would be weakened by half. Apart from that, he would also be seriously injured. For this reason, the second use was only used in moments of utter desperation. 

Kuang Tian Zheng had lived for tens of thousands of years, he had only used that specific power twice. Needless to say, he was fighting for his life both times he had used it. Fortunately, he was lucky to kill his opponents after using the power. In both instances, it took him many years to repair his damaged Heavenly Veins.