The Mathura Herakles is thought to represent Herakles fighting a monster that had impervious what?
Nemean lion The Nemean lion ( ; Greek: Νεμέος λέων "Neméos léōn"; Latin: "Leo Nemeaeus" ) was a vicious monster in Greek mythology that lived at Nemea. It was eventually killed by Heracles. It could not be killed with mortals' weapons because its golden fur was impervious to attack. Its claws were sharper than mortals' swords and could cut through any armor.
Anzû (mythology) Anzû, before misread as Zû (Sumerian: "AN.ZUD2, AN.ZUD, AN.IM.DUGUD.MUŠEN, AN.IM.MI.MUŠEN"; cuneiform: "AN.IM.MI-mušen"), also known as Imdugud, is a lesser divinity or monster in several Mesopotamian religions. He was conceived by the pure waters of the Apsu and the wide Earth, or as son of Siris. Anzû was depicted as a massive bird who can breathe fire and water, although Anzû is alternately depicted as a lion-headed eagle.