Adaptable Breath - At the end of a short rest you may choose to change the damage type of your breath weapon to either Acid, Cold, Fire, Lightning, or Poison. If you do it remains that damage type until you choose to change it again at the end of a later short rest. 

• Your breath weapon now does additional damage equal to your strength modifier. 
• Changing between breath weapons requires the you to consume something of the same element. 
• Upon changing breath weapon damage types, your skin/scales/horns will subtly (or not so subtly, up to you) shift to match the color of dragon associated with the damage type.