Karlabos, also known as Karl Boss, is a boss in Final Fantasy V. It pulls the party's ship into a whirlpool and attacks them while they are navigating the Torna Canal, where it had been sealed. After the battle Karlabos drags Syldra into the vortex. Without Syldra to tow along their ship, the party is set adrift.
A Black Mage'sThunder spell should take it out quickly. Another strategy can be executed if the party has a Blue Mage on level 5 with the Goblin Punch learned; if the character is on the same level as the enemy, Goblin Punch will inflict around 240 damage, making this boss an easy kill.