Bahamut has a powerful attack and also has some very powerful abilities that it can learn, including Abilityx4 (which allows a character to junction four abilities rather than the standard two) and Forbid Mag-RF, which allows for refining some of the most powerful Magic in the game.

Attack Name: Mega Flare
Attack Effect: Normal damage

How to Obtain Bahamut

You receive Bahamut as a Guardian Force after you defeat him in the Deep Sea Research Center. There is no alternative method of obtaining Bahamut, as this method is available throughout the game's duration.

List of Abilities

Ability	AP	Effect
Abilityx4		Sets 4 Party and/or Character Abilities to a character. Even if you junction a GF with Abilityx3, it does not change the number of abilities that can be set from 4.
Magic		Enables the use of Magic in battle.
GF		Enables the use of GF in battle.
Draw		Enables the use of Draw in battle.
Item		Enables the use of Item in battle.
Str+60%		Increase Strength by 60%. Set each as a separate ability for a cumulative effect (Setting +20% and +40% makes Strength +60%).
Mag+60%		Increase Magic by 60%. Set each as a separate ability for a cumulative effect (Setting +20% and +40% makes Magic +60%).
Mug	200	Changes Attack command into Mug. Mug adds an item-stealing ability to Attack.
Move-HP Up	200	Recover HP by walking on the world map.
Auto-Protect	250	Automatically activates Protect in battle. Auto-Protect doesn’t expire with time or with KO.
Expendx2-1	250	Reduces the number of magic used in Double from the usual cost of 2 to 1.
Enc-None	250	Rare items become easier to find after battle.
SumMag+10%	40	Increases GF’s attack damage by 10%. Learn multiple abilities for a cumulative effect.
SumMag+20%	70	Increases GF’s attack damage by 20%. Learn multiple abilities for a cumulative effect.
SumMag+30%	140	Increases GF’s attack damage by 30%. Learn multiple abilities for a cumulative effect.
SumMag+40%	200	Increases GF’s attack damage by 40%. Learn multiple abilities for a cumulative effect.
GFHP+10%	40	Increases GF’s HP by 10%. Learn multiple abilities for a cumulative effect.
GFHP+20%	70	Increases GF’s HP by 20%. Learn multiple abilities for a cumulative effect.
GFHP+30%	140	Increases GF’s HP by 30%. Learn multiple abilities for a cumulative effect.
Boost	10	Increases damage during GF’s attack. When you press after GF is summoned, an icon and numbers appear. The number shows the damage value at 75%. Press repeatedly to increase it to 250%. But pressing while “X” is displayed returns the damage value to 75%.
Forbid Mag-RF		Refined Forbidden Magic from Items. - 1 Meteor Stone refines into 1 Meteor - 1 Star Fragment refines into 5 Meteors - 1 Ultima Stone refines into 1 Ultima - 5 Pulse Ammo refine into 1 Ultima - 1 Energy Crystal refines into 3 Ultima - 1 Dark Matter refines into 100 Ultima

- Ability is already learned when Bahamut joins you as a Guardian Force.