The Spiderclan were a splinter group of Nightsisters located in the Nightspider Cult cave on the planet Dathomir during the Galactic Civil War. They were known for keeping giant spiders as their slaves and were the archenemies of the benevolent witches of the Singing Mountain Clan. Later on the clan grew and with Morgana Damaya as their Clan Mother, they joined the Nightsister Coven.
With the Nightsister Coven, they attacked the light side Clans and tried to take Dathomir from those clans. When exile came for them, they ensured their cave and tunnel systems remained hidden for their return. Upon their return, the cave was retaken but their Clan Mother retired. Once she stepped down, there were Clan Mothers but they did not stay long. The current Clan Mother is Damsha Bacquin, one that desires to build the clan stronger than before.