Ability Score Increase.

Your Wisdom increases by 3 and one of your choice increases by 3.

Age.

A Void Walker can live forever since they have a powerful permanent connection with void energy to keep them alive, even death can't stop them.

Size.

Your size is medium.

Speed.

Your walking speed is 30 Ft. and your flight speed is 20 Ft.

Void Blast

You are able to use to your void energy to create blasts to damage those who are in your way.

Void Birth.

Since you are born in the void your body has no need to eat, drink or sleep

Immortal Knowledge

You have an advantage in history, arcane, and religious information

Languages.

You can speak, read, and write any language

Void transformation.

You are able to pull from the void energy to turn into a Void Dragon and must have a long rest before you can transform again.

Rift 

you can teleport yourself or someone else to any location known to you

Spectral body

your body can't be destroyed or cut apart