Shadow Powers

There are a few shadow powers I've read about over time. For some reason they are usually used for evil. However they could be put to use for good as well. One of the most known shadow power is traveling by shadow. This one can be very useful in escaping and in entering an area when you don't want to be seen. Of course you can't really go in in bright colors. This is usually seen with thieves and assassins. What you don't think about is oh fire fighters. You could get into an area and save trapped kids. Or police. They could get into some place that where evil doers hide and set traps. Creative ways to use "evil powers" for good.