陰陽符戦 ("Inyofu") is a strategic card game set in a mystical world where players act as exorcists, using enchanted talismans to banish supernatural spirits. The game is designed for 2 to 4 players and blends elements of trick-taking and hand management, with sessions lasting around 15 to 20 minutes. Its fantasy theme immerses players in a battle between light and dark forces.
The gameplay unfolds over alternating phases called "Yin" and "Yang" phases, each with distinct rules. During the Yang phase, players engage in a "Go Out" style similar to classic shedding games, where the goal is to get rid of cards based on numerical strength. In contrast, the Yin phase introduces trick-taking mechanics, where players play cards to win tricks and collect cards played by others.
Players must effectively utilize their hand of talisman cards, each marked with numbers and associated with either the Yin or Yang phase. The challenge lies in predicting opponents' moves, managing the timing of playing specific talismans, and adjusting strategies to the shifting phases. Each decision could be pivotal in achieving victory by being the first to empty one's hand.
The ultimate goal is to strategically employ your talismans and adaptability to become the first player to have zero cards, mastering the delicate balance of offense and defense that this enchanting battle demands.