Your Intelligence score increases by 2, and you increase one other score 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.

Crystal dragonborn have the tendencies of their creator. They tend to lean towards neutral alignments. Each type leans to another in specific, Emerald chaotic, Ruby lawful, Sapphire neutral, Topaz good, and Amethyst evil

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 30 feet.

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

Draconic Ancestry

Your tough skin makes it harder for foes to land a successful hit against you. You have a +1 to armor class.

When you take the Attack action on your turn, you can replace one of your attacks with an exhalation destructive energy. Your draconic ancestry determines the size, shape, and damage type of the exhalation. When you use your breath weapon, each creature in the area of the exhalation must make a saving throw, the type of which is determined by your draconic ancestry. The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. 

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.

You know the mage hand cantrip, this mage hand is invisible as it is cast through psionics. At 3rd level you can cast invisibility on yourself at 2nd level once per long rest. At 5th level you can cast Mind Spike as a 2nd level spell once per long rest, the spellcasting ability for this is your intelligence.

You have resistance to the damage type associated with your draconic ancestry. As well as resistance to psychic damage from your connection to the crystal dragons.

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.