Chameleon

You have become so adept at changing shape that when you stop in place you can use your Change Appearance ability in order to blend into an object or background around you. 

As long as you don't use your movement or are not moved during your turn, you can make a Dexterity (Stealth) check with advantage and can pick an object or texture that you can see, you change the texture of your body and all non-magical objects you are wearing to that of the object you focus on until the start of your next turn. During this time you count as invisible (DM's discretion). This ability does not cost you any action.

If you attack, move or use an item, and that might cause others to discover your location this ability ends early.