These Decks release with Kero Kero Ace Megazine which are the publishers for Bushiroad products.
2 Decks are gets released in a single pack.
Half Decks are used in Flash Fights and consist of 25 cards per pack. The first 2 packs released consisted of 1 Exclusive Card in each pack, but then when the last 2 packs were released they had 2 Exclusive cards in each pack.