This is a woman well, fembot who got bored with her job as a Torture Technician and decided, as a hobby , to hunt endangered species and keep trophies from her kills. In Supergirl story Hellsister Trilogy , Satan Girl is Kara's dark side embodied and non-fettered by a conscience or human compassion and empathy. Balalaika was also one before she graduated to The Baroness of Hotel Moscow, having been a sinister soldier sniper for the Soviets during the Afghan War. Both Joystick and Iron Maiden actually get one over on Spider-Man and they both get Black Fox to let them go, and coincidentally it takes both of them to take them down. Anytime she's fought by the party, it's a Hopeless Boss Fight. Rhianna herself qualifies, being a highly-skilled Knife Nut armed with a diamond-coated combat knife.