I Can Transfer the Side Effects of Evil Skills

It is well known that while most Evil Skills can be mastered quickly, they are accompanied by immense side effects. A slight misstep and you could drive yourself insane or get yourself killed.
But what if the side effects could be transferred to your enemies? How exhilarating would it be to cultivate Evil Skills then?
In any case, Zou Feng, who transmigrated here, is already having the time of his life.
The most evil, most venomous, and most morally corrupt Cultivation Skills? Bring them all on.
This Poison Skill will make your entire body fester and become unrecognizable? Cultivate it!
Cultivating this Skill will cause you to lose your sanity and become worse than a beast? Cultivate it!
A Cultivation Skill that ensures you won't live for more than a year upon mastery? Cultivate it!