The Demon of death and destruction.
A Demon that consumes the spirits of the living, Throughout history is has had the name of Death and Grim Reaper. while not inherently evil, The Soul Collector can be summoned by Ritual Magic and used for evil purposes.
Raahomon Tethlonis summoned the Soul Collector but not even he had the power to control it underestimating the Soul Collector, Instead it turned on him consuming his soul. It took the legendary artifact The Eye of The Gods to wish it out of existence by Kain, Vlad and Zen working together.