The Extra Packs (エクストラパック Ekusutorapakku) are a series of packs in the OCG that introduce cards to the Japanese and Korean OCG that were previously exclusive to the TCG, and to introduce cards to the other OCG region that were booster pack region-exclusives. The Extra Pack sets so far include: * Extra Pack * Extra Pack Volume 2 * Extra Pack Volume 3 * Extra Pack Volume 4 * Extra Pack 2012 * Extra Pack: Sword of Knights * Extra Pack: Knights of Order * Extra Pack 2015 * Extra Pack 2016 * Extra Pack 2017