Skeleton

A dog's mournful howl pierces the night. The crickets are silent. Somewhere nearby, a baby cries restlessly in its sleep. At first you can barely make out the sound of them, the hollow clicking and clattering of dry, ruined feet on the cobblestones. But now they're louder, growing closer. And they're coming for you.

The dark necromancy infusing Wraeclast gives no respite to its countless dead. In the still of midnight or in the bright light of day, the bodies of the fallen walk with frenetic animation. In life, many of them wore armor and brandished weapons, so expect skeletons you encounter to come armed and adorned. They are not discerning in their choice of gear however, a skeleton is content with a broken mace or a rusted sword. As long as it can cut or crush, they like it.

Wraeclast's skeletons are not particularly tough or threatening, but they are fairly difficult to injure with some types of weaponry. Archers or swordsmen may find themselves frustrated, watching their blows slide off hard bone or their arrows whistle harmlessly through. If you are beset by skeletons, splinter their bones with a bludgeoning weapon, and you'll likely live another day.

– Description on the official Path of Exile website