[[Category: chapters]] The Proof of the Clan!, also known as "Witness of the Clan!!" in the Japanese version, is the 156th chapter of the Yu-Gi-Oh! Duelist manga and the 215th chapter of Yu-Gi-Oh! in the Japanese version. The "Mystical Beast of Selket" continues to drive Jonouchi into a corner. Even though he's unable to fight back, Jonouchi has realised that Rishid isn't actually Marik, forcing the Tomb Guardians to take drastic measures.