A booster box is the full sealed run of packs from a single set, and it stays the cheapest way to buy packs per unit. Most English boxes hold 36 packs of 10 cards, while Japanese boxes are usually 30 packs of 5 at a lower price per pack. English sealed reaches us through the only authorised distributor in South East Asia, and Japanese sealed is bought on the verified Thai second-hand market, authenticated in-house and tied to a numbered Purchase Agreement. Boxes ship anywhere in Thailand with tracking, or you can collect them at the Patong store in Phuket.