A skeletal creature is the reanimated bone structure of a formerly living creature, a type of undead. Necromantic magic powers the skeleton, forcing it back into a parody of its living self. Most skeletons are mindless automatons, servants of necromancers or other spellcasters, but a few possess some degree of sentience and free will. A skeleton is seldom garbed in anything more than the rotting remnants of any clothing or armor it was wearing when slain. A mindless skeleton does only what it is ordered to do; it can draw no conclusions of its own and has no iniative. Because of this limitation, its instructions must always be simple. A skeleton ordered to attack does so without pause and fights until destroyed.
Every so often, a skeleton retains its intellect or develops sapience over long years of undeath. No one has been able to create this circumstance intentionally, nor does anyone understand why or how it happens.