Each box contains 30 Japanese Pokémon booster packs. Future Flash is a Japanese Pokémon TCG expansion box (SV4) that focuses on future Paradox Pokémon from the Scarlet & Violet era, specifically the Paradox Rift expansion in English. It's one of two Japanese sets that make up the English Paradox Rift expansion, along with Ancient Roar. Future Flash features cards with a technological "Future" label and pixelated backgrounds, and includes cards that interact with other Future cards.