demonic, woman, hell, evil, dark, violent, beautiful, introverted, antisocial, serious, solemn, medieval, The Siren, like the beasts of myth, is all about charm—specifically, charming Isaac's scalie familiars to work for her!
furry Minions of her own. She swipes as an attack. Screams, emitting a consistent shockwave around her 
Upon death, The Siren burns away, leaving behind her skull.
Sinks into the floor becoming invulnerable and chases you.