(Exposure) Diabolic Diva Duo

Lore
No sooner had the devious pair signed the demon's contact than they cooperated to overpower him and steal his knowledge, power, and life. They had never intended to serve anyone, least of all an entity who would surely abuse and restrain them, and now they could fully indulge their wanton ambitions. "Let's give everyone a real show!"

Acquisition
Evolve 2 Diabolic Diva Duo

Name origin
?