Angel, Fallen Angel

Name: Angel, Fallen Angel
Normal Life Expectancy: Immortal
Background: An Angel (from the Greek ἄγγελος - ángelos) is a supernatural being or spirit, usually humanoid in form, found in various religions and mythologies. They are often depicted as benevolent celestial beings who act as intermediaries between Heaven and Earth, or as guardian spirits or a guiding influence. The term "Angel" has also been expanded to various notions of spirits found in many other religious traditions. Other roles of Angels include protecting and guiding human beings, and carrying out God's tasks. Angels are often depicted with wings on their back, a halo, robes and various forms of glowing light.
http://powerlisting.wikia.com/wiki/Angelic_Physiology

A Fallen Angel is a wicked or rebellious angel. Biblical commentators often use Fallen Angel to describe Angels who sinned or Angels cast down to the earth from the War in Heaven, Satan, demons, or certain Watchers. These Angels are known to be freelance, working in the light, possibly to gain back God's favor, or from within the shadows. Fallen Angels are depicted with a halo that varies in color, having wings that are black, or composed of energy, and various forms of glowing dark energy.
http://powerlisting.wikia.com/wiki/Fallen_Angel_Physiology

Special Abilities: (Check the links provided above)
Disadvantages: Mostly impervious to physical and magical damage, direct contact with Unholy energies usually do Angels serious harm. Most are also unable to withstand entering Unholy ground without experiencing some form of pain or problems.
Special Customs: /