Gargantuan Dragon, Chaotic Evil
A colossal, ancient dragon whose weathered hide shows glossy black scales that look wet, a gaunt skull-like face and horns that sweep back, and a smell of rot.
An ancient dragon has lived for centuries, with a vast hoard and long memory; kingdoms remember its name. Black dragons lair in swamps and flooded ruins and are known for spite and acid. They hoard what they steal and despise the clean and bright.