Necromancy

The corruption of the mortal form or life forces by mages willing to defile such things. Whether alive or dead, the body, flesh, and being can be twisted to the whims of the necromancer's power in a macabre facsimile of life.
Necromancy is the use of magic to alter or manipulate aspects of the physical body and concepts associated with death. Very few have learned this skill, as it is considered extremely taboo across most cultures and is extremely difficult to perform. The exact origin of necromancy and who created it first is unknown; however, scholars and arcane researchers believe that it was first developed in the ancient Surali and Mahavida tribal cultures of Azmith in the Rogue Sands.

Turning the Body Into Something New

When a person passes away, their body becomes a lifeless husk incapable of life ever again. There is no way to bring someone, a soul, someone's unique being, back to the world of the living once it's truly gone. But Necromancy dwells within the field of tampering and working with that which is left behind, the flesh, the emotions associated with death, the processes that take place to the body as it dies and withers away. Necrotic spells can be simple tools used for slowing or accelerating the inherent processes of death and dying. Where a fire mage might face a foe with a flurry of fireballs, a necromancer weaves their sinister spells to degrade the very flesh, causing their enemies to rot alive and their bones to feel brittle and weak. Necromancy can allow its users to preserve their physical appearance cosmetically, though this dark art cannot extend one's lifespan.

Some of the more cruel and twisted arts, the ones that are the most taboo, come in the form of the ability to defile and handle the corpse and the dying as if nothing more than a tool or doll. Some of the most feared necromancers were those who could weave control of the cadavers of the fallen and puppet their corpses around as if puppets on strings, vacant of any life yet capable of walking and serving as extensions of the necromancer. Some necromantic abilities target the metaphysical, allowing for some necromancers to observe whispers and visions of the moments before or during someone's death.

One of the blurred lines of this dark art is that some of the techniques utilized by the most infamous necromancers were based on numerous different kinds of healing magic arts. Several healing spells share properties tangentially with necromantic spells, and there is a puzzlingly thin line between forces that can rejuvenate life and those that can tamper and erode it.