Soul Spirit Extraction targeted the souls of the living and could be regarded as a deadly move.
To others, using this deadly move might come at a high cost.
In the Sky Beyond the Clouds, bloodline was very precious, and it was exceedingly difficult to evolve the bloodline.
It was basically impossible for experts to be able to sacrifice bloodlines that were of the same type as their own.
If there was a faction or person in the Sky Beyond the Clouds that could make that sacrifice, they would also have other means to kill their targets.
But to Lin Yuan, bloodline was not something that was difficult to get his hands on. Regardless of how elite the bloodline was, he would be able to nurture it through his Body of All Spirits.
When he faced powerful enemies, the bloodlines he had nurtured for the longest could be used to take control of his opponent's souls.
