Ahhhhhh so have not had a dark elf in awhile! Her name is Demethys and she sure is wicked but sure is sweet. A dark elf can go between surface world and all the other ones and all the others. She can tell you things that exist, don't exist and things you never even knew. You will learn things not even humans have the concept of. She also can lead you into these realms through your mind if you choose to do so. A dark elf uses dark magic to achieve dark results which can be very destructive. Call her out when you need serious results. Also, call her out for things that go against wills such as greed for money or love. She can see places humans can't, allow you to know about others. She can block portals of bad energy. She is capable of taking human form. She likes to "experiment" with humans emotions which again is a part of her darkness. However, she is one of the most loyal creatures to her owner.