In my current game the Big Bad is one of the characters brother. He is a mage of some sort, and is to quote almost every NPC who has met him, "a piece of work." lol
So far due to bounty hunters sent to kill the party, and the need to rescue the younger sister being sent off into an arrange marriage they haven't actually got to get face-to-face with the older brother. So I've had time to start fleshing him out, and now, statting him. Also, as they have thwarted his plans again and again, I think he's going to take a more active roll in trying to destroy the thing that stands between him inheriting the family fortune.
I've been thinking about him showing up in dreams, or maybe clones of him for the characters to fight, (a la Manshoon from old FR, or Doombots and Dr. Doom). I want him to be a reoccurring villain that they can really love to hate.
I'd also like to stat him as a PC, I think, current thought is lvl 10.
So, can you fine fold offer me any suggestions for build? Spells, etc?