Stingtail

Stingtails were a larger, more monstrous variety of asabi that were found in the desert of Anauroch in north Faerûn. They were believed to a mutation of the more abundant species and were only found among the other species' tribes, never alone.

Description
Unlike their grey or brown cousins, the scales of stingtails were brown or red in hue. They were much larger in size and considerably less intelligent, so much so that they were content in following the lead of their more devious kin.

These stingtail asabis were so named for their prehensile tails that could be used to lash at opponents in combat. The tip of the tail secreted an acute poison that caused confusion in its target.

The Bedine of the Anauroch desert used the poison secreted from stingtails to coat their weapons.

Combat
These creatures were immune to enchantment/charm spells and effects.