The price of magic skills is terrifyingly high. This was why Yang Bingtian once said that he wouldn't readily accept disciples. It's unquestionably beneficial for a Yin Yang Demon Master to learn magic skills from a powerful teacher.
As for higher killing skills, the teachers at Li Fire Academy only simplified them as rare, and elusive but immensely powerful. Any Yin Yang Demon Master who has these killing skills would be the focus of the Continent.
This was all Ji Dong knew about magic skills. But now, listening to Flame, he learned that his knowledge from Li Fire Academy was far from enough. Magic skills not only included benchmark skills, hit skills, and killing skills, but also had higher ranked super killing skills and ultimate skills. Even Flame mentioned the word 'even' when talking about ultimate skills, signifying how tremendous their power must be.
