My almost minor big bad evil guy has quite the shopping list of wrong-doings that he did to the PCs. I think it's safe to explain a bit of plot spoilers. But just to be sure, if you are in the campaign "The First Era" on Roll20, these are some pretty hefty spoilers.
Despite this, I'm going to take the impossible task of trying to make this guy sympathetic, and show all the good these actions have done, and give the PCs a chance to join up with this guy, as a pseudo evil campaign, Where the paladin is being held on the nose in the distant hope he get's his soul back. If he tries anything rash, he'll crush the soul right infront of his, gaining extra spells per day to boot (because he took the souls power and used it to fuel his magic)..
I feel like he's going to be the main villain, without being the main villain. Thoughts?