Fire Breath

As an action, you can exhale a raging inferno in a 90-foot cone. Each creature in that area must make a Dexterity saving throw against a DC equal to 8 + your Constitution modifier + your proficiency bonus, taking 20d8 fire damage on a failed save, or half as much damage on a successful one.

Once you use this ability, you can't use it again until you finish a long rest.