SAKAMOTO DAYS - UNION ARENA RARE BATTLE

The UNION ARENA RARE BATTLE is an exciting special event held at local stores, featuring popular titles like Sakamoto Days and Solo Leveling. In this competition, participants battle under ONE Battle Rules, using decks from the same title to vie for exclusive “UNION RARE CARDS,” which can only be earned through this event. Each kit is designed for 8 players and includes a winner-specific UNION RARE Card, a standard UNION RARE Card, and nine event packs, making it a unique opportunity for fans to showcase their skills and collect rare items.