So I’m currently rereading Death Masks of the Dresden Files and I really love the Knights of the Blackened Denarius. I think they’re an awesome group of villains and I’d love to throw them at some PCs in a d&d campaign. I suppose I’d give the possessor of the various coins the ability to wildshape(using the term loosely) into the specific devil, demon, or monster associated with that coin.

The opposite of dice shaming - because if I scold and mock them for failure, I ought to reward success, right?

This was what happened when I spent a luck point to throw a grappled vrock at a nalfeshnee. DM ruled that the damage die for a thrown vrock was a d12, plus a d4 for being large-sized.

The nalfeshnee was laughing at us as it flew over a chasm full of lava, well out of range for most of our party. The vrock went face-first into its open mouth. Nalfeshnee literally ate that much damage (as did my hapless involuntary missile), and was so offended that he slammed the vrock down into the lava, killing him.