Leviathan (The 4 Heroes of Light boss)

Leviathan is a boss from Final Fantasy: The 4 Heroes of Light. He is fought in the sea east of Liberte and later in the Star Chamber. Defeating it grants the Dancer crown.

Strategy
The party should include an Elementalist to deal with Leviathan's magic and buff the party's attacks, and equip Ice Shields. Leviathan's physical attack is Water-elemental, and may also cause Instant Death. Since Leviathan is weak to Fire, Fire-elemental equipment and abilities from jobs like Black Mage and Spell Fencer are very useful.

Initially, Leviathan only has one arm. When it is "broken" with sufficient damage, a second arm will join it, repeating until there are four arms. When all four arms take sufficient damage, Leviathan flips over into its true form. At this point, it can attack up to five times per turn (once per arm and the main body). Leviathan will also begin casting magic at this point. It will also start charging Tidal Wave, but doing a significant amount of damage will break this attack.

Leviathan can be difficult because of its frequent attacks and chance of Instant Death. A White Mage may be advisable over the Salve-Maker due to the greater healing of Raise over Phoenix Downs and being able to re-cast Lux (if the player has it) more frequently.