khadgar567's Breath of the Dragon
3rd level transmutation
Casting Time: Action
Range: 30 feet
Components: V, S, M (a scale or other body part from the appropriate type of dragon)
Duration: Concentration, up to one minute

You give a willing creature within range the ability to use a breath weapon like a dragon of your choice. For the duration, the creature may use a bonus action to breathe according to the following table:

Dragon Type Damage Type Range and Shape
White Cold 15' cone
Green Poison 15' cone
Black Acid 30' line
Blue Lightning 30' line
Red Fire 15' cone
Brass Fire 15' cone
Bronze Lightning 30' line
Copper Poison 15' cone
Silver Cold 15' cone
Gold Fire 15' cone

All dragon types do 2d6 damage. The breath weapon will recharge on a roll of 4, 5, or 6. The recharge roll is made at the end of the target creature's turn. Do not roll at the end of a turn where the breath weapon was used. If the breath weapon is available it may be used to make attacks of opportunity as a reaction.

Higher level spell slots: Casting khadgar567's Breath of the Dragon with a 5th level slot increases the damage to 3d6, and increases the length of the cone to 20', or the length of the line to 40'. Using a 7th level slot increases damage to 4d6, and increases the length of the cone to 25', or the length of the line to 50'. Using a 9th level slot increases damage to 5d6, and increases the length of the cone to 30', or the length of the line to 60'.