Chai Lun was rather straightforward, directly addressing the matter in front of Yan Bingxuan.
After all, compared to the four Rank-3 Puppet Masters like them, Yan Bingxuan was merely a Rank-2 Earth Master.
The Immortal Gate has extremely strict assessments for Rank-3.
It should be noted that even Chen Mobai has not yet been certified as a Rank-3 Talisman Maker!
"The theory behind the artificial synthesis of Earthly Fiendish Qi has basically been conquered following Elder Yuanxu's research."
"It primarily requires a vast amount of human resources for experiments and observations; a handful or a dozen people could at most only focus on the research of one or two types of Earthly Fiendish Qi."
