The Union Arena TCG Rurouni Kenshin booster box contains 16 packs with 12 cards each, featuring iconic characters like Himura Kenshin, Saito Hajime, and Shishio Makoto. It includes a total of 100 playable card types plus 6 special AP (Action Point) cards, with rarities ranging from Common to Super Rare, and some packs containing parallel or voice actor signed cards. The set allows players to recreate the series' battles and unleash Hiten Mitsurugi-ryu techniques through exclusive new illustrations created specifically for the game. 
Box contents
Packs per box: 16
Cards per pack: 12
Total playable cards: 99 + 6 AP cards (total of 105 card types)
Rarity levels: Common (C), Uncommon (U), Rare (R), and Super Rare (SR)
Special cards: Parallel rare cards, voice actor signed cards, and AP cards are randomly inserted 
Gameplay and features
Character lineup: Includes popular characters from the Rurouni Kenshin series, such as Himura Kenshin, Saito Hajime, and Shishio Makoto.
Gameplay: Players can create decks to customize character attacks and relive legendary battles from the series.
Art and design: Features high-quality cards with exclusive illustrations created specifically for the Union Arena game.
Signature cards: Some Super Rare cards are autographed by the original Japanese voice actors.