"What kind of logic is this? Barter, an equivalent exchange?"
Trading Earth Essence Stones for True Tears required Zhou Chuan to carefully weigh the gains and losses. Now that he was used to the efficiency of Earth Essence Stones, he didn't even look at Spirit Milk anymore. Not only did Earth Essence Stones provide a steadier flow of energy, but they could also boost Zhou Chuan's power by a full thirty percent, making the use of Spirit Tools or divine abilities far more effective.
In the half-year since acquiring the Earth Essence Stones, Zhou Chuan had only used up three of them. They were exceptionally durable. However, he knew they would eventually run out.
Chapter 737