A trading card game based on the "Berserk" manga series by Kentaro Miura. The goal of the game is to seize control of 3 of the 5 cities in the game including the capital city or to reduce the cards in your opponent's deck to 0. This is done by playing character and effect cards at the cities' locations. All cards enter play face-down, even the cities, and you can flip only one card per turn face-up plus one card per battle. Cities are flipped face-up whenever a face-up character is at its location and flipped face-down again when the last face-up character leaves that location. Battles over cities are fought with characters with freely distributable damage in an order determined by the character's range. Card costs are a mix of payment costs (discarding cards from your hand) and a threshold cost (the number of cities that are currently face-up).