Sewerm

Sewerns were a species of water snake.

Description
Sewerns were large snakes with long fangs. Their scales were ideal for blending in to the murky waters of marshes, swamps and sewers. They naturally produced an anaesthetic oil that coated their scales.

Combat
Sewerns attacked only warm-blooded creatures. They attacked any appendage of its prey that was underwater, wrapping around it and using their long fangs as an anchor. Their fangs injected an anaesthetic into the bloodstream of its prey. This anaesthetic secretion was so strong that more often than not, a sewerns prey was unaware it was bit.

Habitat
Sewerns lived in marches and swamps along the Sword Coast. They were notorious in Waterdeep, where they were found in great numbers in the sewers. The Cellarers' & Plumbers' Guild considered them a nuisance and working hazard.

Ecology
A sewerns diet was exclusively the blood of warm-blooded creatures.

Uses
The anaesthetic secretion was highly sought after by the Guild of Apothecaries and Physicians for use in treating pain.

Appearances

 * Adventures
 * Dungeon #73: "Mere of Dead Men: Eye of Myrkul"