Bright, shining copper scales run from the horn-crowned head to the ridged tail of this long-winged dragon.
5e SRD
Large dragon that lives in climates similar to blue dragons
Copper dragons live in a similar climate to blue dragons.
Copper dragons often (45%) are known to speak, and sometimes (40%) cast magic, but sometimes (40%) will 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 copper dragon can cast spells, it gains spells as if it were a magic user of a level equal to its age category.
OSRIC