Welcome to The Master of Collections leading range of official Yu-Gi-Oh! Trading cards & TCG merchandise. Boost your deck with our extensive collection of singles, booster packs & booster boxes. The Yu-Gi-Oh! Collectable trading card game has grown since its launch in 1999 to become one of the most popular trading cards worldwide, rivalling the likes of Pokemon, Magic: The Gathering and Cardfight Vanguard. With the series continuing to gain popularity, the extent of the Yu-Gi-Oh! Trading card game spans over 20, 000 unique cards.