Magick and Monsters
Magick and Monsters is a fantasy board game that appears in the Diary of a Wimpy Kid series. Its only appearance was in Rodrick Rules (However it was mentioned in Dog days and appears to have a series of novels as well as rule books), when Greg, Rowley, and their babysitter Leland played it. It is basically a board game with special dice and not so much of an appearance. The supplies needed to play are pens, paper, and dice. Greg's mom decided to play too; she ruined the game.
Appearances
Rodrick Rules (First Appearance)
Dog Days (Novels of The Game)