
Shadow Fiends are creatures made entirely of darkness. They are what remains of souls who have been trapped within precious gems and stones primarily by a man named Doran. He was a man who fell in too deep within the darker arts of magic and in the long run lost what was left of his humanity. After that point he took to locking away anyone and everyone that crossed his path, both enemies, friends, and innocent bystanders.
Athan was Doran's childhood friend, and he is on a path to set things right by releasing all the Fiends he can. Unfortunately, because of the nature of the spells that are used the chances of a Shadow recognizing who they once were entirely is quite slim. They are simply 'shadows' of their former selves, and will never remember fully who they were. There are some, though, that manage to experience brief feelings or visions from their past, but sometimes the past is something better left alone -- not all of them were innocents, after all.
Being made of darkness, most Fiends are inclined to trickery and mischief. This is particularly so when they are children. Chaos surrounds them at all times, but this is not to say they're evil per se, but do expect quite a bit of trouble if you're (un)fortunate enough to become a Guardian.
If you'd like to read more about Shadow Fiends and what they are and the story behind them, please visit the guild.
(the link obviously isn't up yet! still working on stuffs)