Exchanged from the Relic Merchant for 20,000,000 nyang plus 200 untradeable Azure Dragon Essences, or crafted by a level-220 jeweler from 5 enhanced moonstones, 20 thunder dragon beads, 50 dragon scales, 50 broken belt fragments and 20 sands of time for 30,000,000 nyang. Part of the Azure Dragon divine beast set.