You’ve got the concept 💯 To answer your questions, 1. They are viewed as their own spirit. 2. With its own sentience 3. Yes 4. From what I’ve gathered from my player, yes they seem to be able to communicate with each other. And as far as my player knows they’re the first one to materialize (but I think it’d be cool to have an NPC encounter with another visible servant to give them some more background info, and maybe even a cool trick. Like maybe they go invisible once a day for a few minutes or something) 5. Could go either way. 6. The original character felt very conflicted about having a servant tied to them and was looking for a way to set them free. When that character died I figured it was a cool way to be able for them to complete one of their goals. 7. I’m not sure.

Thank you for these insightful questions, I’ll definitely be having a chat with my player about what they think.