Immunity to spider venom

Immunity to spider venom was an arcane abjuration spell, used in the Underdark, which would allow the target to become all effects of arachnid venom, digestive secretions or internal fluids.

Effects
The spell would work on any creature that the caster touched, including themselves. Once cast, the recipient was immune to all venoms from arachnids. The recipient would also become slightly more resistant to any other types of venom, acid or poison.

Components
As well as a verbal and somatic component, the material component consisted of a fully intact spider, of any size, alive or dead.

Appearances

 * Computer games:
 *  Menzoberranzan