I don't know if I count, as I am a former Wiccan (current atheist.) Wiccans typically believe in a God and a Goddess, but sometimes just a Goddess. Although Wiccans can also believe in a pantheon of gods. The "powers" of a Wiccan are basically the ability to ask the God, Goddess, or gods, to grant favors using ritual magick. Magick can only work through natural channels, such as a spell for money will make a legal settlement more likely to turn out in your favor. The core moral belief is the "Rule of Three" or "Threefold Law" that which you send out comes back at you threefold, and the Wiccan rede "An it harm none do what ye will." Which basically means that as long as you don't hurt anyone, you can do whatever you want.
And it's not a secret, you can read about it in many books on the subject, as well as online.