A tough enemy that uses powerful water attacks and attacks that debuffs stats.
When the enemy is protected by whirlpool damage will be reduced, so inflict ice damage for 3 turns or more to destroy the whirlpool.
If the whirlpool is destroyed, on top of overall damage, one unit will be removed from the battle, so take note.
If you do not have a strategy against water attacks, you will not last against the powerful attacks, so be sure to have gear that increases water resistance.