Bahamut
Non - Elemental
Bahamut is a huge grey dragon. The king of the GF's. He fires fire and strong elemental damage at your enemies, infliting large amounts of damage. His junction abilities are frighteningly powerful. Auto protect is very handy for all fights. His large amount of GF skills means his attacks are very strong.
In the Deep Sea Research Centre walk toward the blue beam when it is not shining to avoid facing monsters. When you reach the beam answer three questions from Bahamut answering numbers (1), (2) and (3)(invisible answer), in that order. After each question you will have to fight a ruby dragon. After the third question you battle Bahamut. beat him and he will join your party.