Fire Dragons, tribe and all, are one of the most powerful dragon tribes. Their scales, spines, and even teeth, leak a very flammable substance that can be ignited when threatened. They have tough muscle glands on the backs of their necks, that resemble spines. Fire Dragons are able to spark the fluid inside, making a marvelous display of fire. The tissue that lies beneath the scales, produces a soft or harsh glow of yellow, orange, or red.