The drow who inhabit the subterranean caverns of Ashfar are a more disciplined, sinister breed than most. At this point in their evolution, they are both zealously religious in their worship of ‘She’ and highly militaristic, favoring lengthy combat training, execution of the inefficient, merciless slaughter of foes and ruthless efficiency in the field. They work in groups, rather than as solitary assassins and have a rigid chain of command. The females are always given the superior position. Descended from an earlier subrace of dark-skinned elves, the drow were banished from the surface world for following the goddess ‘She’ down the path to evil and corruption. Now they have built their own civilization in the depths of the Underdark, patterned after the Way of ‘She’.
The drow of Ashfar have a custom of ritual cannibalism, gleaned from the spiders that they adore. Eating another is seen as an assertion of authority, not as an insult or as a means of honouring the dead like it is in some other cultures. For example, any officer may order a subordinate to be killed and brought to him as a meal if he feels that the lower ranks are not sufficiently respectful of him. A female drow may
sometimes eat a male after mating, as an indication that the status of the female is always superior, whether she takes a male as a mate or not.
PC Race Source: Player’s Handbook