Diablos
Diablos' Attack: Dark Messenger
Location:Speak with Headmaster Cid before you leave for Timber to receive the magical lamp. Use it in your inventory, and you'll be teleported to Diablos.
Useful Abilities: Mug is one of the best abilities in the entire game. You can steal items from enemies with this attack, and sometimes they are very rare (If you find Admantine, keep it!)Abilityx3 is good, because you can equip three GF's with it.