Kardahamut

Kardahamut (カルダアムット Karudahamuto) is the ultimate Genjuu, created by Scryptorek to eliminate the Toa Luminus and Toa Metru. It took an "Omni-Slash" from Cloud and an "End of Heart" from Squall to defeat this monstrosity. It's signature attack is "Nui GigaFlare".

Etymology
Kardahamut is a cross between Kardas, the Dragon Rahi commanded by Vezon, and Bahamut, the recurring summon creature from the Final Fantasy series, particularly the FFVIII and X incarnations and Bahamut SIN(appearance-wise).

Trivia

 * The roar it makes is a lower pitched version of Eva-Unit 01's roar in the japanese voice track of Neon Genesis Evangelion.
 * It is the only Genjuu to be called by it's name by a character in the story itself.
 * Kardahamut's depiction as working for Scryptorek is a subtle foreshadowing of Somnus and Bahamut being revealed to be the true villains of the Final Fantasy XV universe, and the latter as the true villain of the entire Final Fantasy series. Though, inversely, the misguided king was working for the evil dragon in FFXV's context.
 * It's role is also an homage to Bahamut SIN in Final Fantasy VII: Advent Children.
 * If Kardahamut were released as a set, it would look identical to the Kardas Dragon, but in the colors of Bahamut.