A unique skill hereditary to his family, JO crystals are arcane and mystical minerals conjured up via arcane, obscene, and excruciating means from his moist, soft innards. These so-called 'kidney stones' are extremely soft and valuable to burgeoning micro nations as cryptocurrency. Acquiring these stones is a crapshoot of genetics and luck, and it's suggested that selling valuable spiritual items such as childhood toys, your soul, the family jewels, to a certain Unholy Fallen Angel is the only way to acquire them.