This is honestly a great addition to any ttrpg system but for both editions of cairn this is great the screen is just so fun with its art and useful with its quick info. The guide is awesome its not that you could figure this out by yourself  but i think having it all laid out for you and with rolling tabled through out the whole thing you can really relieve some of the indecisiveness i know us wardens ( DM, GM, Judicators, Etc.) go through when trying to design adventures for our tables. another great project as always.