Ah, that makes sense. Cheers for the explanation. Glad you liked the ideas. The Kain reference was in my opening post, albeit briefly; although in all honesty, I cannot remember from where I gleamed that piece of information. So it could be from one of the other representations and not the original. Either way, it seems to work.
Of course, as this fine creatures creator I shall have to let you know the horrors it is capable of. Admittedly it won't spring up in the campaign for a while yet, I'll have to run some mock scenario's though just to get a feel for it. These would be without my players of course, I'd hate to tarnish the surprise. I'll let you know how it fairs when I have found the time to do so.
Thanks again.