Although what it borrowed from was only the barest surface, its power was still far from small.
However, while this cultivation method was profoundly abstruse to the extreme, the conditions for refining it were equally harsh beyond measure.
First, low-level zombies were completely unsuitable. The Corpse Demon used as the material had to be at least mid-Lihe or above. This condition, of course, the thing before him fully met.
Second, an empty shell would not do. Even a Corpse Bead would have no effect. This Corpse Demon had to be an intelligent being that possessed a Corpse Infant.
This point was somewhat troublesome.
After all, the Corpse Infant had already been destroyed by him. Fortunately, the secret art proposed a solution for this situation.
It did not necessarily have to be the original Corpse Infant. If there was none, a cultivator's Nascent Soul could also be used.
However, this method was rather troublesome.
First, the Nascent Soul's divine sense had to be erased. Then, using the secret art recorded in the Jade Slip, it had to be ritually refined all over again, completing the transformation from Nascent Soul to Corpse Infant.
This process was not as simple as just talking about it. Not only did it require a large number of rare materials as auxiliary items, it even carried a certain risk.
The success rate was not high either. With the slightest carelessness, all previous efforts would go to waste.
Moreover, there was another prerequisite: the cultivation of the Nascent Soul and that of the Corpse Demon shell had to be roughly the same. It could not be higher, nor could it be lower, otherwise rejection would occur during the fusion.
Seeing this, Lin Xuan's expression could not help but darken somewhat.
But very quickly, he raised his head again.