Collectors of Souls are characters that make a habit out of capturing life-forces (known as "souls"), this trait is greatly associated with powerful demons and evil spirits but can also apply to rogue death gods or powerful magic users and even some meta-humans.. the reasons behind the collection of such "souls" varies from setting and character but some of the most common are as currency (by hell-lords), a power-source (by vampiric "soul-eaters") or simply out of twisted desires (such as mad scientists and evil magicians).