Breath wepon

You can use your action to exhale destructive energy. Your draconic ancestry determines the damage type of exhalation. When you use your breath weapon, each creature in the area of the exhalation must make a saving throw. The DC equals 8 + your dexterity modifier + proficiency bonus. A creature takes 2d8 damage on a failed save, and half as much damage on a successful one. The damage increases to 3d8 at 6th level, 4d8 at 11th level, and 5d8 at 16th level. After you use you breath weapon, you can't use it again till you complete a short or long rest.