Myrlochar

Myrlochars, also known as soul spiders, were demonic minions of Lolth with the appearance of oversized arachnids. They were often summoned by clerical drow to track down the enemies of the Dark Mother like giant hunting spiders.

Description
The monstrous myrlochars were 3 feet (.9 meters) long in body, but their legs were 6 feet (1.8 meters) long and their forelimbs seemed elongated. They resembled emaciated spiders with a chitinous exoskeleton ranging in color, from brown, russet, and ivory-yellow. While their bodies exuded a faint greenish-yellow light, their eight eyes were glowed a vibrant red. Their voices were ghostly and hissing while their jaws were razor edged.

Abilities
Myrlochars were dangerous huntsman, with an acute blindsight and the ability to move in complete silence whenever they wished. Most mental effects were of no use against them, as were poisons and webbing. Capable of vertical levitation, and easily scaling walls, most land terrain posed no challenge for them to navigate. They normally used their levitation abilities to carefully fall to the ground. Their most unique ability however laid in their vitality draining fangs. The bite of a myrlochar could permanently sap the strength from a person and render their stolen vigor onto the soul spider. Myrlochars also had the option of causing their bite to paralyze the victim or reverse their gravity.

Society
Due to occupying a lower rank than yochlols, myrlochars were much easier for drow priestesses to summon to the Material Plane. They were normally summoned alone or in packs in rituals either for worship, information or in order to ask for their aid. Normally the request was to hunt down escaped foes of Lolth who fled into the Underdark. Like Lolth's Handmaidens, myrlochar would normally obey a single order from their summoner that they completed without question before being free to wreak havoc on their current plane. When a follower of Lolth that had fallen out of her favor attempted to summon a soul spider for a service rather than worship, she often sent an uncontrollable and rampaging myrlochar to greet them with no way to send it back outside of killing it.