I want to build a villain from the ground up. Where are the rules for this such as determining his EXP value? and how tough to make him? How much equipment to put on him?
For background info on the villain, He is a lich in disguise, (he is either a sorcerer or a wizard) that is going to become a mentor to the PC's. His goal is to literally undo his lichdom. He is going to send them on missions with lots of undead to destroy and old texts with necromantic theory in it. (he is also a librarian).
I plan on having the final showdown (if the PC's decide that they don't want to help him undo it) at level 12. There will be 5 PC's.
Any other info needed just post it.