Jsk Feats:Chameleon

You are capable of changing the color and transparency of your scales to better blend in with your surroundings.
 * If you are not wearing armor, you can become invisible as an action. Any equipment you are wearing or carrying becomes invisible with you. The invisibility ends if you move, take any action, bon armor, concentrate on a spell, or become incapacitated.
 * If you are wearing armor, you make Dexterity (Stealth) checks with advantage as long as you are within 5 feet of a solid surface (such as a building, tree, or wall).