Breath of Brikor

Your inherent dragonbreath has been blessed by the entity known as Brikor. Alongside the damage determined by your Dragonborn Ancestry, you additionally do 1d6 of acid damage for every d6 of damage your breath weapon normally does, effectively doubling it's potency. The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. After you use your breath weapon, you can’t use it again until you complete a short or long rest.