Face what lies within. Not metaphorically, but literally. Your deck is not just your strength. It is also your greatest threat. Every demon card you play carries power, but any one of them can become your next enemy. You decide who you face, and what you are willing to lose. This is a turn based roguelike built around meaningful decisions. Each choice reshapes your run. Sacrifice strong cards now, or risk fighting them later at full strength. Defeat your enemies to transform them into permanent guardians that enhance your deck. Fail, and start over with new insight. Key features: Your deck defines both your abilities and your future enemies Strategic card sacrifice with long term consequences Permanent progression through defeated demons High replayability through dynamic enemy selection You are not only building a deck. You are confronting it.