I recently played Hollow Knight so I came up with a weird charm. I thought way too hard about it, but fittingly I guess. It was fun! It’s nothing dark, really, but it sorta deals with obsession and anxiety, and might also contain spoilers for the game? So I used spoiler blur to be on the safe side.
Throughout the game there are Wanderer’s Journals, stone tablets covered in writing usually found near a corpse. The “Unfinished Rumination” charm would look like a small stone journal, but split in half and missing chunks, two broken pieces of rock with incomplete writing, bound together with silk. When equipped, it would use a lot of charm notches (at least 4), slowly drain SOUL, and block all exits in the current room/area with unbreakable silk/web walls until every secret in that room/area was found. I think it could actually be, in typical Hollow Knight fashion, useful and inconvenient at once! It would even be possible to get stuck, forcing you to reload your save and return to the last bench used. The “secret found” chime would be replaced by a more dramatic bell sound. And the charm itself would probably be found in a hidden study room in the Teacher’s Archives, near the corpse of a spider-y version of Menderbug which I guess is my bugsona now. The corpse’s Dream Nail text would be “… Lore???”. I already spent way too much time (mine and yours!) on this so I’m skipping the charm description text and the weird interactions it could have with Dreamgate and Stag Stations. Thanks for reading my Hollow Knight fanfic lol