A tenth-grade magical core naturally came from a tenth-ranked high-level magical beast. Across the entire Longxuan Empire, there were no more than twenty people who had the capability to have killed one. The appearance of any tenth-grade magical core would also cause an intense struggle. It was not an exaggeration to say that a tenth-grade magical core was sufficient to exchange for two cities!
Except for mythical beasts, the tenth-ranked high-level magical beast was the most powerful among all magical beasts. The eleventh-ranked magical beasts were nearly extinct. Therefore, a tenth-grade magical core was the highest grade one could find in the empire. No matter one's profession, as long as they could infuse that magical core with their weapon, then their weapon would be upgraded significantly!
