Breath Weapon

Requirement

When you first gain access to this feature you must choose a damage type from: Electric, Fire, Ice, Poison, Light, or Dark.
Your Breath Weapon deals that type of damage. You are trained with your Breath Weapon and become an expert at 5th, a master at 10th, and legendary at 15th level.
Your Breath Weapon DC = 10 + Proficiency + Constitution Modifier.   When you use your breath weapon, creatures in a Cone(3) must make a basic reflex save or take 2d10 damage of your chosen type.
The damage and AoE of your Breath weapon increase by 1d10 and +1 when your Proficiency with your Breath Weapon increases to 3d10 and Cone(4) at 5th, 4d10 and Cone(5) at 10th, and 5d10 and Cone(6) at 15th level.