The UNION ARENA TCG Kaiju No. 8 Booster Box contains 16 packs of English-language cards featuring the Kaiju No. 8 set from the manufacturer Bandai. Each pack offers standard-sized cards for players aged 6 and above to enjoy the Union Arena game. Get your hands on this booster box, perfect for collectors and players looking to enhance their deck with the latest cards from the 2025 release.