These are wildlife or people that have accidentally been assigned or possessed by other souls. Perhaps a person's soul was accidentally transfered to an animal, and both the physical animal and soul within become changed and twisted over time. This should allow an interesting menagerie of were-creatures - some good, some aggressive, while still adhering to the "natural" order in which the world works.
Creatures or people who have had malevolent souls forced into them by necromancy or dark magic. There will be distinctive physical manifestations in many instances which would create an interesting assortment of twisted monsters. Evil mages may use these possessed creatures for protection or weapons.
3. Disembodied Souls
These disembodied souls fail to complete the great cycle or have lost the ability to atune to living creatures, and thus become trapped in the physical realm for eons. They become either extremely wise as they observe the passage of time over many cycles, or become bitter and weary, as they are never allowed to die and be reborn. They often grow jealous of mortal beings, and this twists them into malevolent spirits. They either possess the area they were forcefully disembodied, or may wander aimlessly. Sometimes, they construct false bodies for themselves as a substitute for a real body. They can "possess" and animate a wide range of inanimate objects or forms - sometimes cobbled together haphazardly, sometimes fashioned meticulously over eons. To get even closer to their ultimate desire of inhabiting a living body, they often possess the dead. In combat, they can sometimes leave their physical form and attempt to wrestle with the souls of party members. Those with lesser powers may incapacitate the party member temporarily as they struggle, or sometimes very powerful souls may possess the party member and turn them against their friends temporarily. Only magic is capable of harming or destroying these souls.
4. The Godforged and the Abandoned.
These entities are the results of attempt at creation by the gods. They either were forged to coexist with their makers in the god realm, or are abandoned creations which were never "born" into the physical realm. They are forged using soul energy, but do not possess souls as those on the physical realm do. These entities often reflect the nature of the god they are created by, and may be beautiful majestic creations or vile, ugly monstrosities. Because of their godly nature, they are rarely seen in the physical realm, but there exist certain phenomena which can open rifts between the two realms...
What do you guys think? Are these ideas still too "conventional fantasy"? I suppose I've simply "justified" some conventional ideas for creatures/monsters by linking them with the idea of souls. Should Obsidian go for something more unique? How do you justify fantastical creatures in a fairly low fantasy and realistic setting? What are some of your ideas? It's definitely fun making this stuff up!
Edited by Justinian, 19 October 2012 - 11:04 PM.