Leviathan is a giant sea monster in Hebrew mythology, though its actual appearance is never described. It is known to be the ruler of the seas, the greatest sea creature alive.
Leviathan is a mainstay in the Final Fantasy franchise, generally taking on the appearance of a sea serpent. Leviathan has appeared as a summon in multiple titles, such as Final Fantasy VIII and IX, also made an appearance in Final Fantasy Online, and was the name given to a ship in the less popular Final Fantasy XII.
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