I have PC who is playing a dragonkin from the dragonkin race book. Unfortunatly the book does not include the rules on breath weapons for his race.
What are the rules for dragonkin breath weapons? Is it a feat or trait? Is it a trait that can be exchanged for one of his others like his natural energy resistance?
The dragonkin I found is a 3rd party race from Kobold Press and doesn't grant a breath weapon. They simply don't have one.