- From a special flute bought from the Remnant Moon Traveling Merchant.
Dragon Compendium[]
This rare dragon with golden scales can only be summoned with a Remnant Moon Dragon Flute. No one knows how the Remnant Moon Merchants Union found Royal Thorn, or how they produced the Remnant Moon Dragon Flute. This mystery may not ever be completely resolved, however many Osirans are content to tame this ferocious beast without regard to its inexplicable origins.