The material below is Open Game Content from a 3PP Source
School evocation [acid, cold, electricity, or fire]; Level alchemist 4, magus 4, sorcerer/wizard 4
Casting Time 1 standard action
Component V, S, M (a dragon scale)
Range 30 ft. or 60 ft.
Area cone-shaped burst or line
Saving Throw Reflex half; Spell Resistance yes
You breathe out a blast of energy. Creatures in the affected area take 1d6 points of energy damage per caster level (maximum of 12d6). A successful Reflex save results in half damage. The spell’s effect and energy type depend on the type of dragon scale used:
Black dragon: 60-foot line of acid.
Blue or bronze dragon: 60-foot line of electricity.
Green dragon: 30-foot cone of acid.
Gold or red dragon: 30-foot cone of fire.
Silver or white dragon: 30-foot cone of cold.
Brass dragon: 60-foot line of fire.
Copper dragon: 60-foot line of acid.