How often have you, as a GM or as a player, encountered a description of a gemstone that goes something like this: GM: "You have overcome the last trap in the ancient temple. Ahead of you stands the stone statue you have been seeking, a pair of red gems for eyes." Players: "What kind of gems?" GM: Checks a small table in his book that isn?t detailed enough and tries to think on his feet. Remembering... [pulse aquí para ver más]