You Big Devil, Why Are You so Righteous?

Lin Kong traveled through the world of immortality and gained an anti-routine proficiency system: He was obviously practicing the "Eight Immortals Spiritual Sword", but what he had increased was the proficiency of the magic skill "Blood Evil Formation". He is obviously practicing "Vajra Buddha Body", but what he has increased is his proficiency in the magic skill "Heavenly Demon Pill"... After figuring out that this system did not follow conventional routines, Lin Kong decisively went in the opposite direction—— "Practice the magic skill "Yin Sha Demonic Qi", but what you gain is the orthodox "Haoran Zhengqi" proficiency!" "Using the dangerous and terrifying "Soul-Eating Claw" will not only avoid being counterattacked, but also increase the proficiency of the "Fairy Sword"..." A demonic cultivator is a demonic cultivator, and his efficiency crushes the decent cultivators! As for going crazy? There is no such thing as a magic skill. The more evil it is, the more dangerous it is. The more you practice it, the more proficiency you gain in upright cultivation! "Is this the big devil who is famous in the three realms? Oh my god, how come the awe-inspiring righteousness in him is greater than that of our ancestors?"