Enhanced Breath Weapon

Your Draconic blood gets stronger as you do, and can use this added power into your racial breath weapon. You gain these features

• You have a number of Breath Weapon uses equal to your constitution modifier, and regain all spent uses when you finish a short or long rest
• The damage of your breath weapon increases to 3d6 when you take this feat, and increases to 4d6 when you reach level 15. 
• The Save of your DC increases by 1