Death Energy

Death energy exists in the dead and dying. For anything living, it is a harmful energy that can cause pain and weakness, or even injury and death if exposed to it for extended periods and in significant quantities.

Necromancers have long discovered methods to harness this energy and create undead, beings who go against the natural order. In their search for longevity and power, some necromancers have even gone a step further and converted even themselves into the dreaded liches. The undead subsist on death energy, and life energy is their greatest weakness, as well as their greatest enemy. The undead seek to kill the living to create more death energy, but simultaneously an area with ambient life energy can weaken or even 'kill' the undead.

This is because life and death energies cancel each other out. Therefore, whichever exists in greater quantities will triumph and overwhelm the other.

However, unlike the living, undead are imperfect, flawed creations. They constantly bleed death energy, creating uninhabitable regions of death where too many of them gather for too long.