Jack the Gnome

Jack lived in the Underdark for centuries and was
at one time a student of illithids and demons in
his search for greater magical knowledge. The
illithids in particular taught him to escape the
bounds of the corporeal and of the mortal.
Apparently, Jack was highly skilled at shape
changing. He often took the form of a winged
snake (a Jaculi) to carry on his mischief and
manipulations of the shamans of the half-orc,
half-ogre tribe Clan Karuck