Before she was a lich, Greta was Granny. She traded magical tattoos for gemstones. But you needn't worry if you had none. Granny was sure to offer you some other bargain.
With the Unfathomable! campaign coming to a conclusion, I'm starting to think about the next one. I won't have nearly as much time to prep, so I'm picking rules and settings that lend themselves to improv: