Lytos

Centuries ago on some outlander world, Lytos was a mortal companion of the immortal being known as the One. Unfortunately, Lytos was mortally wounded. Desperate to avoid the loss of his friend, the One shared a part of his immortality with Lytos. However, the effort failed to grant Lytos true immortal life but instead turned him into a tortured and rotting husk begging for release. The One could not remove what he had given, and only Lytos' complete destruction by fire could put him to rest. Through tragic misunderstanding, Lytos' heirs branded the One a necromancer and began an eternal hunt for him.