To gain more time to complete their goals, some desperate spellcasters pursue immortality by embracing undeath. After long years of research and the creation of a special container called a phylactery, a spellcaster takes the final step by imbibing a deadly concoction or casting dreadful incantations that transform them into a lich. While most undertake this drastic plan to continue their work or fulfill some long-term plan, others become liches because they fear death or to fulfill some malevolent purpose, such as long-sworn revenge. Regardless, the result is permanent and carries with it the potential to alter history-both that of those who transform themselves and of the countless mortals that will inevitably suffer as a result of a lich's new power.