- "A spear that contains water spirits. They have the power to instantly freeze and shatter the target."
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The Leviathan is one of the four legendary weapons named after the gods, Behemoth, Efreet, Leviathan, and Jinn. Detailed in the Radiata Castle's library in the book World Weapon Encyclopedia where it states that this weapon has only been detailed in legend, is probably mythical, and that no one has ever seen the weapon in person.
Found in Septem Cave during the Stone of Miracles mission after defeating the Trap Octopus.