Dungeons & Dragons Version 2's rules are very complicated and require a lot of background knowledge. If you want to understand the rules of the game in depth, it is recommended to read related books or documents such as Dungeons and Dragons Version 2 Rulebook, Dungeons and Dragons Version 2 Basic Guide, etc. This information could help him better understand the rules and background of the game, and at the same time, he could learn more about the game. Other than that, he could also practice it through games. When playing Dungeons and Dragons 2, you can try out different role-playing and adventure methods to better understand the rules of the game and the game world. They could also discuss strategies and stories with other players. Learning the rules of Dungeons and Dragons 2 requires patience and hard work. By reading books, playing games, and interacting with other players, you can better understand the rules of the game and the game world.