#source/5e_2024
#progression/level
#origin/lineage

When you take the attack action on your turn, you ca replace one of your attacks with an exhalation of magical energy in either a 15-foot cone or a 30-foot line that is 5 feet wide. Each creature in that area must make a dexterity saving throw (DC 8 plus your constitution modifier and prof bonus). On a failed save, a creature takes 1d10 damage of the type determined by your draconic ancestry. On a successful save, a creature takes half as much damage. This damage increases by 1d10 when you reach character levels 5, 11, and 17.
You can use this breath weapon a number of times equal to your prof bonus and you regain all expended uses when you finish a long rest.