To sell a legendary paint job in War Robots, you need to sell the robot with the paint job applied. First, unequip the paint job from the robot you want to sell. This removes the paint job, making it available for use again.
Next, apply the legendary paint job to another robot of the same type. This is necessary because the paint job can only be sold when it is attached to a robot. Make sure the new robot you choose is identical.
Once the paint job is on the new robot, you can proceed to sell this robot. By doing this, you effectively sell the paint job along with the robot. This method ensures that the legendary paint job is included in the sale.
Remember, selling a robot with a legendary paint job increases its value. Make sure to choose the right robot to maximize your benefits. This way, you can make the most out of your legendary paint job in War Robots.