Leviathan (Final Fantasy VI boss)

Leviathan is a boss in the Advance version of Final Fantasy VI. It can be fought by taking the ferry between South Figaro and Nikeah once the party has acquired the Falcon, but will not appear unless the party has talked to a man in South Figaro who mentions seeing a shadow while fishing.

Leviathan starts the battle with Tsunami and uses it periodically through the battle with Aqua Breath and El Niño. He also has a powerful physical attack and counterattacks with Entangle, which inflicts Slow. Leviathan's Water attacks hit the entire party and cannot be blocked, but by equipping a piece of the Imp Equipment on all party members, the party can absorb Leviathan's Water attacks and only his normal attack will inflict damage. Upon his defeat Leviathan drops the Leviathan magicite.

The battle against Leviathan is the last chance for Mog to obtain the Water Harmony Dance if the player did not learn it in the World of Balance. Also, it's a chance for Strago to learn Tsunami.

AI Script
At beginning of battle: Tsunami (100%)

Attack Turns: 1st Turn: Attack (66%) or Aqua Breath (33%) 2nd Turn: Attack (100%)
 * Attack (100%)

3rd Turn: Attack (66%) or El Niño (33%)

If attacked by "Magic" or "Lore": El Niño (100%) If attacked by anything: Entangle (33%)

If Timer >= 20:
 * Tsunami (100%)
 * Tsunami (100%)

Gallery
Leviathan (FFVI)