Cagnazzo (The After Years)

Cagnazzo is an enemy in Final Fantasy IV: The After Years.

Strategy
Cagnazzo has a weakness to Thunder, and Ice elements, so it's best to have at least one Black Mage in your party such as Palom, Golbez, and Rydia, Leonora knows black magic also, but she's not very effective like the others. Depending on who you have, use their Blizzaga, and Thundaga spells. Rydia's Eidolons can help but if she knows either Blizzaga, or Thundaga, she should focus on them instead. Rosa, Porom, and Leonora should all focus on Healing and buffing the party with Haste spells, as well as slowing down Cagnazzo with the Slow spell. Anybody with Physical might should just be constantly attacking or performing their unique abilities such as Kain's Jump or Yang's Focus. It is esspecially helpful to have Yang and Ursula, equip Lightning and Ice Claws, to dramatically increase damage.

After enough damage is dealt, Cagnazzo will retreat into his shell and start recovering HP. Physical damage at this point is useless, so try and finish him off quickly with Magic while he's still in his shell, be quick about it before he manages to replenish his HP.