Draconomicon 2: Metallic Dragons (4e)
Draconomicon: Metallic Dragons describes several varieties of dragons¸ including gold¸ silver¸ copper¸ iron¸ and adamantine dragons. It also introduces several other kinds of metallic dragons suitable for any D&D campaign.
"This supplement presents dragons both malevolent and benign¸ and gives details on each dragon's powers¸ tactics¸ myths¸ lairs¸ servitors¸ and more. In addition¸ this book provides new information about the roles that metallic dragons fill in a D&D game. Story and campaign elements in the book give Dungeon Masters ready-to-play material that is easily incorporated into a game¸ including adventure hooks¸ quests¸ encounters¸ and pregenerated treasure hoards.