The Zombie World structure decks introduce new cards and include some tough-to-find reprints like "Soul Taker" and "Plague Wolf." These structure decks allow you to transform every monster into a Zombie with the life altering power of the Zombie World spell card. You can destroy your opponent's monsters and summon them from the Graveyard under your command. This set is fully compatible with 5D's cards, including Syncrho Monsters. In addition to 40 cards, each deck includes a new rulebook, playmat, and a Dueling Guide that explains some of the new strategies available to players.