The conditions provided by the Attribute Panel differed from those mentioned in Lu Lin's notes.
The former required seven Cultivation Techniques of the same level but different attributes as the "Eight Yang Nirvana Sutra", while the latter only mentioned the need to cultivate five techniques corresponding to the Five Elements.
Six Upper Earth-Rank Techniques—where was Chu Feng supposed to find so many high-level techniques?
Even one "Eight Yang Nirvana Sutra" was a secret tradition of Nie Yan, and now he had to obtain six more!
He pondered deeply, guessing that the requirement for Upper Earth-Rank techniques in the synthesis was because he would be the core of the process.
He was cultivating at the Upper Earth Grade, so the synthesis had to use techniques of the same rank.
"If I had known, I would have started off with some trashy Human Rank technique..." he thought helplessly.
Of course, as the old saying goes, humans don't have eyes in the back of their heads.