|Final Fantasy X Dark Aeon|
|ヘレティック・バハムート (Heretikku Bahamūto)|
|Sensor||Immune to Sensors.|
|Common Steal||Twin Stars|
|Common Drop||Dark Matter|
|Rare Drop||Master Sphere|
|Weapon Drop||One MP Cost, Double AP, Double Overdrive, Break Damage Limit|
|Armor Drop||Auto-Protect, Break HP Limit, Ribbon|
|Abilities||Impulse, Mega Flare|
|Resistant to||Zanmato (Lv. 5)|
|Immune to||Silence, Sleep, Darkness, Poison, Petrification, Slow, Zombie, Power Break, Magic Break, Armor Break, Mental Break, Threaten, Death, Provoke, Doom, Distil, Sensor, Scan, Gravity, Delay, Eject|
Dark Bahamut is an optional boss in the International, PAL and HD Remaster versions of Final Fantasy X. It can be encountered by returning to Zanarkand Dome, in the spot where the party fought Yunalesca.
Dark Bahamut is one of the most difficult Dark Aeons to defeat. After every five of player's attacks (counterattacks do not count), Dark Bahamut counters with Impulse, which can KO unprotected characters and will shatter the character if they are petrified rendering them out of action for the rest of the battle. It also inflicts Slow, Full Break, and Delay — in the case of Slow, this will ignore Slowproof or Ribbon; though Auto-Haste will still protect against it.
As with any other enemy, Dark Bahamut can be killed instantly by Yojimbo's Zanmato attack.
If the player does not have any Ribbon or Stoneproof armor to survive Impulse, there is an easy, but long/boring way to defeat him: all party members must have Counterattack or Evade & Counter abilities. The party should use Aim and wait for Dark Bahamut to attack: the counterattacks will slowly kill him. The party's HP and Defense together must be enough to be sure of surviving Dark Bahamut's physical attacks.
A risky tactic for parties having trouble hitting him due to Dark Bahamut's tendency to dodge physical attacks is to set Overdrive Mode to Stoic, then use Impulse to 'farm' Overdrives, which are guaranteed to hit him; as Impulse inflicts Full Break, the player should dispel them from two of the three party members, and the third will have their gauge maxed out when struck; the auto-abilities mentioned above can help make this less difficult to maintain due to having to reapply Protect and Haste. This trick can also be used against Dark Yojimbo, using Kozuka to inflict the required breaks.
- An action figure of Dark Bahamut exists as part of the Final Fantasy Creatures Vol 1 series of monster figures.
- Dark Anima
- Dark Cindy
- Dark Ifrit
- Dark Ixion
- Dark Mindy
- Dark Sandy
- Dark Shiva
- Dark Valefor
- Dark Yojimbo