Another argument for the Leviathan as a mythic dragon is some of the feats it performed, as written in the Book of Job. It seems that the beast described here has laser eyes and fiery breath!

mighty swordLeviathan the Elusive Serpent—Leviathan the Twisting Serpent; The Dragon of the sea will be slain. (Isaiah 27:1 King David recognized this same dimension of our world when he wrote ...

Enemies Belphegor, Blood Eye, Imp, Fell Knight, Summoner, Hellflapper, Arachne, Thunder Dragon, Asura (boss), Leviathan (boss). Suggested Level If you want to have any chance of surviving ...

Another significant mention is Leviathan, described in Isaiah 27:1 as a formidable sea creature representing chaos, which God will ultimately defeat. Tom Glynn Carney in House of the Dragon.