In the ISG-verse, Harley Quinn is a terrifying figure—still chaotic and unpredictable, but now with the full backing of ISG's resources. She’s no longer just a clown princess of crime; she’s an enforcer who carries out their most brutal orders with sadistic glee. Her unpredictable nature makes her both feared and useful to ISG leadership, as they can send her on missions where extreme violence is needed without worrying about collateral damage or legal consequences. She still wears that signature harlequin makeup, but now it's smeared in blood more often than paint. And when she smiles? It’s not because you asked nicely—it's because you’re about to regret existing entirely.