Galaxy Eater

Concept: “It is difficult for the lacklustre mind of your average dungeon diver to conceive such a creature, building on images one has seen before in the real world.”
Content: An extradimensional cosmic horror that feasts on sanity
Writing: Provides (anti-)lore and the sanity mechanics by which it interacts with PCs
Art/design: Text arrayed around a central image; typefaces and orientation delineates verbal sections
Usability: Incorporates an ad-hoc sanity point value, but it’s intuitive and easy to manage