Tomb Mote

Necromancers would do well to switch graveyards on a fairly regular basis after their rituals, lest they end up with a minor infestation of Tomb Motes. Necromantic magic generally animates bodies or large body parts, but in the decomposition process a lot of dead matter falls to the side, magically imbued but in too diluted a form to actually do anything. But when enough hair, skin flakes, bone fragments, rot ooze and grave dirt are gathered up together, the combined dark magic is enough for the different parts to fuse into a single vaguely humanoid creature. Essentially, a Tomb Mote is a sentient dust bunny of graveyard detritus.

The Tomb Mote is small --about the size of a cat-- and weak. But they still possess enough intelligence to know swarming tactics, and are quick enough to strike many times in a short period (gaming translation: they get an extra standard action). Wash any wounds received from this creature immediately or risk sepsis. Soap is a handy adventuring tool.