Twilight Caste

The Twilight Caste are the scholars, sorcerers, and craftsmen of the Unconquered Sun. In the First Age, the Copper Spiders were the creators of fantastic wonders and artifacts, as well as defenders that relied on cunning and magic.

Anathema
The Dragon-Blooded call the Twilight Caste the Unclean because they were said to make pacts with demons and spirits of darkness and use their powers to sacrifice others for their benefit.