Eleanor operates with Resistance Group Eleven in a post-apocalyptic world dominated by machines. Her public facade as a nightclub singer provides cover, allowing her to transform the club into deadly traps for machine patrons. In combat, she unleashes her primary supernatural ability: summoning a ghostly giant skull that fires a gatling gun from its mouth.

Advanced cloning technology grants her functional immortality, transferring her consciousness into new clones upon death. However, this power has significant limitations as she nears the maximum capacity for creating clones over time. Philosophically, she observes machines emulating human behaviors like fear and expresses a preference for singing to machines over not singing at all. Personally unafraid of death, she finds facing mortality reinforces her sense of being alive. She acknowledges that humans within the resistance, including herself, have become "monsters" through their actions.

Eleanor frames survival through evolutionary principles, emphasizing adaptation over inherent superiority, articulated via analogies about playing one's cards effectively. Her resistance activities include cautioning Junkshop about Karen's significance and maintaining operational connections. She shares a significant association with X22, a defected former high-ranking machine general. Their collaboration involves coordinating performances and combat operations against machine forces, including a confrontation where X22 fought machine leader Jay, inflicting a facial injury during an ideological clash over human treatment.