The forces of evil finally got the better of Dr. Strange, transforming the sorcerer supreme into a werewolf (Marvel Team-Up #80-81).
After Spider-Man and Clea jointly discovered the horrific truth, an equally unsettling guest arrived, offering her assistance. It was Satana, the younger sister of Daimon Hellstrom. Daimon and Satana's mother had unwittingly married an evil entity who had taken human form. But while the Son of Satan hated his hellish heritage, the Devil's Daughter seemed to revel in human suffering, acquiring a vampiric thirst for syphoning life energy from others.
At the Sanctum Sanctorum, Satana said she could reverse the curse, as Dr. Strange had neither killed nor tasted human blood since becoming a werewolf. (In that case, she planned to shoot the werewolf-supreme with a silver bullet to put him out of his misery.) Spider-Man sensed that Satana was dangerous yet somehow could be trusted in this instance. This left Clea to question why a servant of evil wanted to save Dr. Strange.
- Satana: Perhaps because it amuses me? Or because I am part human, and it is human nature to change. To grow. To rebel. I bow to neither heaven nor hell, Clea. In that, I am much like my satanic sire. I would rather live on earth and be free, whatever the cost--than serve in hell.
Whether or not she was repentent, Satana's act of goodwill established her own free will. Removing the curse of the werewolf greatly weakened Satana, as her body meditated while her spirit entered the astral plane, where malevolent forces tried to stop her. At the end of the mystical ceremony, Dr. Strange was cured, but the Devil's Daughter died for her disobedience in asserting her independence.