Is this...an evolved version of the Behemoth?
The player should start off by buffing the party with spells like Protect and Haste. Cecil, Edge, and Kain should use physical attacks, and Rosa cast Curaga continuously. Rydia should use summon magic and her most powerful Black Magic.
An easy way of dealing with the Behemoth is to cast Blink on all characters, or bring Rydia and Edward to use the Band Mirage Song, which casts Blink on all party members. The party can also cast Slow or use Spider's Silk. After the last blow, King Behemoth will use Meteor and it can be fatal if HP is low, but the player only needs to keep the HP of some characters high enough to withstand the attack.
Behemoth is a beast mentioned in Job 40:15–24. In addition to mythological creatures, it is likened to elephants, hippos, rhinos, and bison. Metaphorically, the term behemoth denotes "an extremely large or powerful entity."
- To match its appearance from the original version of The After Years, the King Behemoth's sprite in Final Fantasy IV: The Complete Collection is a high-resolution version of his sprite from the Advance release of Final Fantasy II, instead of the PSP release.