The Army of the Dead are the Overlord of Death's main forces. They a simply reanimated bodies forming skeletons and zombies, or spirits forming ghosts. Zombies are quite easy to kill, with few gunshots taking them out. Skeleton's are stronger and more numerous, and could withstand grenade explosions. Ghosts are quite powerful and can only be killed by magic and other powers. Liches are the commanders of the army, and are quite powerful, again only magic and other powers can kill them, though they could withstand anything and everything and require a masssive force to destroy them. Conjurer Skeletons are the second to Death. The army was used by the Overlord of Darkness when he absorbed Death.