It's a life-or-death duel to the finish as Shobu faces the greatest challenge of his life. The realm of creatures threatens to overtake and destroy earth and only total mastery of the game can keep that horrific fate at bay! Unknown to Shobu, however, a powerful master is assisting him from within the other-realm. NOTE: Each issue comes polybagged with a special card insert compatible with the North American Duel Masters Trading Card Game! This card is only available with the purchase of Duel Masters #4! This series is a collaborative creation of Dreamwave, Hasbro, and Wizards of the Coast. It is based on the popular comics, television series, toys, and other merchandise in Japan with an estimated readership of 1.6 million!