"These scraps of yours, and you want four Sixth-grade Spirit Instruments from me!"
Zhou Chuan had use for Top-grade Spirit Stone, so he was only willing to trade using spirit instruments. As far as he knew, a single sixth-grade Monster Core was worth around five or six hundred top-grade spirit stones, with a thousand at the very most for a top-quality one. Meanwhile, the sixth-grade spirit instruments he had in his possession were all fine goods, each capable of fetching two thousand top-grade spirit stones.
Four spirit instruments amounted to eight thousand top-grade spirit stones, whereas three sixth-grade monster cores combined wouldn't exceed three thousand. As for fifth-grade monster cores, their value was much lower; the whole lot together would only come to about a thousand top-grade spirit stones.
Chapter 831