Undead

Undead is a property held by many monsters. Undead can be raised from the dead by Necromancers.

Monster types with the Undead property on all varieties:
 * Skeletal Archer
 * Skeletal Mage
 * Skeleton
 * Zombie

Individual Undead in otherwise non-undead types:
 * Skeletal Beast, a type of Beast
 * Bone Rhoa, a type of Rhoa
 * Thresher in map

The Map prefix "Undead" causes the map to be inhabited by Undead.