“You were not born yet when the story of my kakambal na ahas who was half-woman, half-snake came out when we ... supervillain based upon the eponymous Greek mythological figure and was archenemy ...

Mélusine, the figure from 14th century French mythology, was a half-woman/half-snake who, when her serpentine self was spied on by her betraying lover, turned into a dragon and took flight.