An Extra Booster (エクストラブースター Ekusutora Būsutā) is a set of Luck & Logic TCG cards differentiated from regular Booster Packs in several ways, including: * Irregular release schedule. * Lack of focus on specific worlds and characters, instead having support for all or most worlds and characters. * A lower total number of cards in the set. * Having parallel versions of all cards in the set. Cards in Extra Booster packs are bought in packs, each costing 500 yen and containing six cards. Extra Booster packs can be sold individually, or in boxes of 6.