The Villains Of Valley View S2 Ep 17 - F2F Transformations

Season 2 Episode 17 The Return
As Harley finishes the mural, she is ambushed by Shadow who traps her and replicates her appearance while leaving Onyx's ghost to watch Hartley as she goes to round up the rest of the family. When Shadow's Hartley form comes back in, she accidentally gives herself away causing both of them to face each other.