Can soneone explain how this card is applied in the game? What is is full function.
Dunwich Horror Mythos Lore Skill Card
Its function is that once per turn you can spend a clue token essentially for free. So you might need help with a skill check or to be able to seal a gate with only four clues. Of course, this is a mighty skill, so it comes with the added penalty that its owner has –1 maximum sanity.