Typhon (G)

is an enormous monster born of Gaia and Tartarus, who was sealed inside Mount Etna, in Sicily, Italy. The bottom half of his body looks like a serpent's tail and his hair resembles one hundred fire-spitting dragons. Sagittarius Aiolos describes him as the most powerful biological weapon in Greek mythology.

History
Typhon makes an appearance before the beginning of Saint Seiya: Episode.G's main plot, in 1973. When the seal that had kept the monster trapped under Mount Etna since the mythological era breaks, Typhon is freed. He causes a typhoon that sinks a passing ship. The only survivor of the shipwreck is a young boy called. The child is saved by the opportune arrival of Aiolos, who then defeats the giant with his cloth's golden arrow.