"Xuenai also gave me a grade-four holy stone... Given the conversion rates between holy stones of various grades in the Daowu Holy Land, its durability is equivalent to ten grade-five holy stones."
Duan Lingtian thought to himself.
"With my current cultivation level and rate of cultivation, a single grade-five holy stone will leave me with plenty to spare even after helping me break through to the early Void Interpretation stage."
Chapter 1369