Undead

The term Undead is usually referred to reanimated deceased beings who are partially alive (Can think, react, move, breed (only in some sub-species; like Zombie Pigmen), etc.) but are still considered dead by the livings due to their horrifying look and because Zombies, beings whom are unable to think or process things in their brain, represent the undead in many folklores.

Killing an Undead being is in fact blocking the life force flow that it is animating the being. In many of the cases, a charm or gemstone is used (such as the Charm of Death), or another being is sharing its life force to keep the others active. Another way that the life force flow is cut is by teleportation from place to place and from dimension to dimension.

While some necromancy techniques use Wisps as portable life force batteries, some might prefer to directly use private magic storages or their own life force supply to keep them animated; this way, the cost of creation is far less noticeable, but the effects are weak and even several meters of distance might break the connection. Mostly, Zombies are created this revived this way, as they are very cheap.