The Leech Chest is a block from the Witchery mod. This block is a plant/chest hybrid, that can be mutated using a Mutating Sprig. The Leech Chest will store blood samples of whoever the first four users to open it are. Like the Trapped Chest that it is made from, when opened, a Leech Chest will emit a redstone signal. To create the Leech Chest, you must place a Trapped Chest with a vine directly next to each four sides. Below the vines must be a water block, it can be still or flowing. Lastly, use a Mutating Sprig on the chest, and it will transform.