Undaunted: My Favorite Mechanism is an article discussing the author's favorite game mechanism found in the board game Undaunted: Normandy. The author describes the mechanism as being innovative and unique, allowing players to experience the tension and uncertainty of war. This mechanism involves a deck of cards that players use to determine their actions, creating a dynamic and strategic gameplay experience. The author praises this mechanism for its ability to immerse players in the game and provide a fresh and engaging gameplay experience.