On Teen Wolf, the girtablilu, or scorpion-man, is a shapeshifter of Sumerian mythology.
The girtablilu has traits of a scorpion, being able to shapeshift into a creature with scorpion attributes, including being to produce a deadly venom.
Main Article: Shapeshifting
Like the kanima, the scorpion-man produces venom. Rows of venomous stingers will morph and protrude from their skin, along their limbs and down their spines. The stingers secrete a venom that inflicts an overwhelming, ever-lasting pain. This pain is non-lethal, and cannot be circumvented by narcotics. But the pain can be absorbed by a supernatural pain siphon.