Constablebrew says:
I don't have to play the occultist - pretty much every other class is available to me. If it's a hard pass for you, let me know and I'll spin up something less disruptive. If you're ok with it tho, I'm prepared to see my character come to an untimely end if that is what it takes to make an amazing and memorable story. If any of those three variations pique your interest more so than the others, let me know. I'm stumped.
No, no, no! Far be it from me to dictate what you want to play and how! You asked for feedback on your ideas, and I gave my feedback based on how I interpreted them and my understanding of Shadowknight's requirements. This is a game, and it is an imagination-based game, so the last thing I want to do is mess up someone else's enjoyment.
That being said, my character is going to be a Lawful Chosen of Elion. So while not as absolutely militantly anti-demon as St. Lutharine, between purity of soul and the flame of righteous judgement, I will have to role-play him as having a problem with someone corrupted-from-the-start. If you go the "addicted" route, that's different. My character won't know in the beginning, and perhaps we can role-play helping to overcome it, but eventually, strongly religious characters (e.g. Chosen or Ecclesiastics) will need to role-play conflict with the corrupt or run the risk of losing their own powers.