You gain wings and a flying speed equal to: your movement speed  +5, when wearing light armor or no armor. Any armor must be custom made to accommodate these wings. In addition you have a tail which must have armor or clothing made for or capable of accommodating it. You do not add Proficiency or Ability Modifiers when making weapon attacks or spell attacks which require a somatic component when flying.
Additionally gain Chromaphoric Trick:
The imperfect shapeshifting of an unstable body, inherited from the cunning of Chromatic Dragons.
With this ability You may use an action to take on an imperfect human appearance which you decide at character creation, losing your wings and tail but retaining traits such as scales in some areas, reptilian eyes or elongated nails and fangs which identify you as dragonborn. You may revert to your draconic form as an action.

Gain weakness to Magical, Elemental, damage (Acid, Cold, Fire, Lightning, Poison.) aside from the element of chosen ancestry. This feature does not apply to non-magical elemental damage and is overridden by any gained resistances to elemental damage.

When you take the Attack action on your turn, you can replace one of your attacks with an exhalation of magical energy in a 30-foot line that is 5 feet wide. Each creature in that area must make a Dexterity saving throw (DC = 8 + your Constitution modifier + your proficiency bonus). On a failed save, the creature takes 1d10 damage of the type associated with your Chromatic Ancestry. On a successful save, it takes half as much damage. This damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).
* You can use your Breath Weapon a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

This Feature may be replaced by the Draconic Resilience optional trait.

You have resistance to the damage type associated with your draconic ancestry.
(This trait is optional and replaces the Breath Weapon feature if used).

Increase one ability score by 2 and increase a different one by 1, or you increase three different scores by 1.

Young dragonborn grow quickly. They walk hours after hatching, attain the size and development of a 10-year-old human child by the age of 3, and reach adulthood by 15. They live to be around 80.

Dragonborn are taller and heavier than humans, standing well over 6 feet tall and averaging almost 250 pounds. Your size is Medium.

Your base walking speed is 25 feet due to the size and arrangement of your wings and tail.

You have draconic ancestry. Choose one type of dragon from the Draconic Ancestry table. Your breath weapon or damage resistance will be determined by the dragon type, as shown in the table.

Draconic Ancestry

You can speak, read, and write Common and Draconic. Draconic is thought to be one of the oldest languages and is often used in the study of magic. The language sounds harsh to most other creatures and includes numerous hard consonants and sibilants.