When determining your character’s constitution by 2 along with additional increases due to your heritage.

Your lineage stems from a dragon progenitor. Choose the kind of dragon from the Draconic Ancestors table. Your choice affects your Breath Weapon and Damage Resistance traits as well as your appearance.

When you take the Attack action on your turn, you can 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 (choose the shape each time). Each creature in that area must make a Dexterity saving throw (DC 8 plus your Constitution modifier and Proficiency Bonus). On a failed save, a creature takes 2d6 damage of the type determined by your Draconic Ancestry trait. On a successful save, a creature takes half as much damage. This damage increases by intervals when you reach character levels 5 (3d6), 11 (4d8), and 16 (5d8).

You can use this Breath Weapon a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest.

You have Resistance to the damage type determined by your Draconic Ancestry trait.

You have Darkvision with a range of 60 feet.

At Level 14, your draconic bloodline fuels a massive growth in muscle allowing you to grow wings capable of short flights and taking a Reaction to reduce fall damage to 0 for falls up to 60ft.

Your dragon's bloodline fuels massive growth and magical reinforcement in your muscles and skeletal structure allow you to perform greater athletic feats:
-Jump 30ft from a standing position
-Jump down 30ft safely without taking fall damage yourself.
-If you move 10ft in a straight line you can jump a distance 40ft.