Tilda Johnson is gifted with a knack for science, using her intellect as an advantage in order to successfully commit crimes.
Nightshade
Spurred by a lust for power and a brilliant scientific mind, Tilda Johnson invented serums that create werewolves, brainwash allies, and disarm Super Heroes, she has succeeded in making a name for herself in the world of criminal activity.
After undergoing a variant of the Super-Soldier treatment in jail for a crime he didn't commit, the man formerly known as Carl Lucas was given superhuman strength and unbreakable skin. Adopting the name Power Man, Luke Cage became a Hero for Hire and a defender of New York City.