Demon's Gate

Demon's Gate is a fairly annoying enemy, not too mention fairly strong and resilient. At the onset of the battle you should cast slow but even when slowed this boss can attack quickly.

You will need to cast barrier or big guard as well as haste on the party in order to help protect against this bosses attacks, which can do exorbidante amounts of damage. Another materia needed is Heal since this boss can petrify your team, or a few softs.

You should attempt to keep your health above 1000 otherwise the boss could wipe you out with his attacks. Demon's Gate is immune to both gravity and poison attacks so shy awak from those and try to use Bahamut, it will do good damage as it is non-elemental. Keep bashing away ate Demon's Gate, haling, and use limit breaks when possible and this boss will fall.

You get a Gigas Armlet for beating it.