Mastery in recovery spells and suddenly invincible

Doctor Ling Fan traveled through the world of immortality. Because his qualifications for cultivation were extremely poor, he did not adopt the traditional cultivation and promotion process. Instead, he went in the opposite direction and studied the recovery spell in depth. After repeated experiments, he finally mastered the recovery spell, but found that the recovery spell After mastering it to the extreme, you have achieved enlightenment and you are suddenly invincible. The entire world of cultivating immortals, and even the original power structure of the spiritual and immortal worlds in the upper world, will be overturned by Ling Fan.