|Source: yunuskocatepe at Deviant Art|
The Bone Swarm Skeleton is a hulking skeletal beast that is made up from multiple skeletons, both humanoid and animal. While it is still a medium size creature, it is larger than a typical humanoid and may stand upright or skitter around on multiple legs. When destroyed, its bits and pieces reform into small animated undead swarms that continue to fight like a skeletal version of the Terminator.
Bone Swarm Skeleton
Medium Undead, neutral evil