The Behemoth is an enemy in Final Fantasy IX found in Memoria as a regular enemy. A Behemoth can also be fought in the Treno weapon shop on disc 4 for a Circlet. It has the same stats as regular Behemoths, but no Experience, gil, or other items are rewarded for defeating it. In the Steam version of the game, defeating the Behemoth in the weapon shop with Dagger earns the achievement Dragon Lady.
Behemoth is especially dangerous because it can counter most attacks with Meteor Counter, which works like a Meteor spell. Behemoth is not immune to any negative statuses.
Attacks like Blizzaga, Flare, and Thievery (if built up to 9,999 damage) all work well. Inflicting statuses such as Instant Death, Heat, and Freeze help tremendously. Vivi's Death and Dagger's summon Odin can kill it in one hit.
Location: Treno, Card Stadium "Beast Master Gilbert"
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."