In the midst of mighty snores, Liszt descended from the sky to the side of the golden Mountain Copper Dragon. The sky was growing dark, but that didn't hinder him from taking out his Crystal Lamp—a Hand Magic Tube—to meticulously observe the enormous creature.
The classification of Metal Dragons was quite interesting.
Gold, silver, copper, iron, tin—all these metals had corresponding dragons, and so did lead, mercury, titanium, platinum, etc. Moreover, often a single metal didn't correspond to just one dragon.
Iron Dragons could be classified into at least five known types: Black Heart Iron Dragons, White Heart Iron Dragons, Malleable Cast Iron Dragons, White Maw Iron Dragons, and Grey Iron Dragons; Copper Dragons had at least four, including Bronze Dragons, Purple Copper Dragons, Brass Dragons, and White Copper Dragons. However, the Mountain Copper Dragon didn't fall under the category of Copper Dragons but belonged to the Magic Metal Dragons.