C2944 Finally It Was a Test

Gu Xuan's face was filled with relief.

After a whole day of research and deduction, he finally succeeded in using the "Spirit Controlling Technique of This Grass" to produce a thousand-year-old Qiuluo herb.

A thousand-year-old herb was enough to be the main ingredient for some Seventh Grade pills.

Moreover, the Qiuluo herb in front of Gu Xuan could still be cultivated