This sleek dragon is covered in dull metallic scales that range in color from shining bronze to mottled blue.
5e SRD
Reclusive dragons that live in temperate climates and are interested in humanity
The reclusive bronze dragons live in caverns in temperate climates. They are interested in the ways of humanity and often use shape-changing powers to watch, observe and help people. They prefer to have their lairs in places isolated from prying eyes, however, and thus often place their entrances in lakes or ponds. They have found that their treasure hordes are tempting targets for evil or even neutral adventurers.
Bronze dragons often (60%) are known to speak, and (60%) cast magic, but sometimes will (25%) be found asleep. If the dragon is asleep, there is a 1 in 6 chance that it will awaken in the presence of adventurers. Dragons also sometimes feign sleep.
If a bronze dragon can cast spells, it gains spells as if it were a wizard of a level equal to its age category.
OSRIC