This 12-tin case contains 6 Blaster Dragon Ruler of Infernos tins and 6 Tidal Dragon Ruler of Waterfalls tins. The Yu-Gi-Oh! Trading Card Game Collectible Tins are based around the popular Dragon Rulers theme! Each tin comes with a Secret Rare version of the Dragon Ruler featured on its lid. Also included are 4 Super Rare cards, reprinting popular cards old and new. One card per tin was previously available only as a promotional card to SHONEN JUMP Alpha subscribers (different in each tin). The other 3 Super Rare cards are selected from popular cards like Black Luster Soldier - Envoy of the Beginning and Ally of Justice Catastor. Each tin also includes 5 booster packs - 1 Hidden Arsenal (either series 4, 5, 6, or 7), 2 Abyss Rising, and 2 Lord of the Tachyon Galaxy.