It can be a visible or invisible Spector who helps or hinders people. Perhaps certain souls get a chance of redemption or have made similar but lesser promises to the Sheriff that Doc has made and must pay those debts. You are the Sheriff’s middle man who gets to choose how those debts are paid.
Thank you, but I was unclear- I am not hung up on the description. I am literally at a loss as to the use, given that this is definitely not something I ever use mechanically, and I have a poor grasp for when and how it should be used ... and I gather it's kind of a good ability.