A Drider is an evil creature with the upper body of a Drow, but from the
waist down has the abdomen and legs of a spider. When a Drow offends, fails,
or otherwise displeases his queen or goddess, the most common punishment is
to be transformed into a Drider. After transformation, a Drider is expelled
from his home into the wild, prohibited from ever returning.
Traits and Abilities:
When a Drow becomes a Drider, it is not just its appearance that changes.
It becomes stronger and smarter, and its spider legs allow it to move faster,
but they are more rash in their decisions. They also gain the ability to
inject venom into their victims, and become immune to poison and diseases.
Please refer to Draknor Society research on Drows. Essentially being a Drow
that has been transformed, there is no history particular to Driders.
--Grantham Melthovar, General of the Draknor Society