The Japanese Pokemon TCG: Terastal Festival ex booster box (SV8a) is a 2024 set featuring the Eevee and its evolutions in their Terastal forms. Each box contains 10 packs, with 10 cards per pack, for a total of 100 cards. Every pack is guaranteed to contain at least one Pokémon ex card, and the set is known for its high-class specifications and gorgeous artwork. The set includes various special art and secret rare cards, and the box itself has unique artwork showcasing Tera-type Eeveelutions and Terapagos. 
Box contents and features
Number of packs: 10 booster packs per box
Cards per pack: 10 cards per pack
Total cards: 100 cards per box
Language: Japanese
Guarantee: Every pack contains at least one Pokémon ex card
Artwork: The box and packs feature special artwork of Tera-type Eevee, Umbreon, Glaceon, Ogerpon, and Terapagos
Rarity: The set includes a high number of special art rare (SAR) and secret rare cards, as well as gold cards
Potential pulls: Besides the guaranteed ex, each pack has a high chance for special art, secret rares, and other high-rarity cards
English equivalent: This set is the Japanese version that was released before the English "Prismatic Evolutions" set, which came out in January 2025
Other details:
Recommended for ages 6+
Printed and manufactured in Japan