Tyrant Dragon Bone

"A Forbidden Technique created by an ancient evil powerhouse for all dragon tribes, the Bane of the Dragon God enables core disciples of the Nine Dragons Cult to drain their own lifeforce, ambient darkness and negativity to increase their bloodline level to that of a True Dragon and boost their cultivation by nine levels. The Nine Dragons Cult received this technique as a gift from the Heavenly Dragons, but even in the cult, only a select few get the opportunity to cultivate it.

This Forbidden Technique can only be used by dragon-blooded people. After using it, the practitioner turns into a dark dragon, going through an atavism to obtain the battle-prowess of their ancestors. But whoever unleashes that skill will not have over 30 minutes left to live.