▶ Ancient hero's soul is often a vital mix material for unsealing the sealed mastery set bought from 'priest James.' ▶ To be able to generate the ancient hero's soul, you may need the set item containing MU continent's soul as a mix product for the final blend by NPC https://sergiobhlos.theisblog.com/35298724/the-smart-trick-of-ancient-hero-soul-that-nobody-is-discussing