Find and defeat specific enemies in the ruins library. According to official website, the instant chopping of the sword is the quick blow of the sword. To get a quick blow from the Sword of Ruins Library, you need to complete a task in the game. This task needs to find and defeat a specific enemy in the ruins. After obtaining the task props, you can complete the task at the designated place. After completing the task, you can get the props of the Sword of Ruins Fast Break Library. Ruins Library is a card strategy game produced and distributed by ProjectMoon.