Mother Talzin, the spiritual guide of Dathomir's Nightsisters during the Clone Wars, held enormous power on her homeworld and wielded the strange magicks of the Nightsisters. She sold the services of the Nightsisters to the galaxy's wealthy and powerful, but wasn't above backstabbing any clients who treated her clan with disrespect. She earned the ire of Count Dooku by aiding one of her sisters, Asajj Ventress, exact revenge against the Sith Lord.
An assassin trained in the ways of the dark side by Count Dooku, Asajj Ventress yearned to be considered a true Sith, but such status wasn't allowed under the Sith's Rule of Two. Ventress fought with twin red-bladed lightsabers, and clashed with Obi-Wan Kenobi and Anakin Skywalker many times. But her destiny would not lie with the Sith…
The world Dathomir holds many dark secrets -- such as ancient incantations that could raise the dead. When the planet was attacked by the Separatists during the Clone Wars, the most ancient and knowledgeable of the Nightsister clan used her power to stir the bodies of the Nightsisters graveyard. From preserved cocoons built to resemble the trees of Dathomir emerged mummified warriors. The shrieking zombies mindlessly attacked their enemies, swarming over battle droids in droves.
A remote planet, Dathomir is drenched in blood-red light from its central star. The planet has continents overrun by twisted vegetation, with forests of bent trees burdened by large, cocoon-like fruit. Bordering dense swamplands is the massive stone fortresses of the Nightsisters, a witch clan. The Nightsisters kept to themselves, but had on occasion been known to offer their services to those who piqued their interests. Far from the Nightsisters lived the Nightbrothers -- a tattooed clan of Zabrak warriors were subservient to their female counterparts.
Savage Opress was once a common Nightbrother whose fighting prowess impressed Asajj Ventress. Transformed into a monstrous warrior by Mother Talzin, Opress became Count Dooku's new assassin and secret Sith apprentice. His loyalty, however, remained to Talzin. The Nightsisters leader gave Savage a new quest: to find his brother, Darth Maul, who had somehow survived his apparent death and was living in exile in the Outer Rim.