+2 con

If you are not incapacitated ,you can extend your skin membranes and glide. When you do so, you can perform the following aerial maneuvers: You can move up to 5 feet horizontally for every 1 foot you descend in the air, at no movement cost to you.  When you take damage from a fall, you can use your reaction to reduce the fall’s damage to 0.

 You don't require air, food, drink, or sleep.

Slash. Using your claws you can slash an enemy within a distance equal to half of your height

Age 800-1000 years but only mature at the age of 500

Tough skin. While in direct sunlight you can't glide and all movement speed is halved but you temporarily add 2 to your constitution and AC and you are resistant to slashing and piercing

• Languages. you can speak one language of your choice