Bahamut SIN (バハムート震, Bahamūto Shin?, lit. Bahamut Tremor) is a form of Bahamut in Final Fantasy VII: Advent Children. It is summoned by Kadaj to destroy the Meteorfall monument in Edge, as well as wreak havoc on the populace.
The attack Bahamut SIN uses is not named, but in Final Fantasy VII, each form of Bahamut uses an ability whose increases in SI prefix starting with Bahamut and Megaflare (10002). The second, Neo Bahamut, uses Gigaflare (10003). The third, Bahamut ZERO, uses Teraflare (10004), and Bahamut SIN's successor, Bahamut Fury, uses Exaflare (10006). Therefore it could be assumed Bahamut SIN's ability is Petaflare (10005), and this is what its strongest ability in Final Fantasy Record Keeper is called as well.
Bahamut SIN appeared as a boss monster during the Bahamut SIN event in Season 2, where it acted as a boss monster on the field that SOLDIER Candidates could team up to defeat. It was the strongest variation of Bahamut, being more resistant to damage than Bahamut Fury. It's main spell is Megaflare.
This great beast wields its formidable powers for the one who summons it. When summoned by Kadaj, this king of dragons runs amok killing and destroying, until at the very peak of its fury, it spews forth a brilliant blue light...Bahamut SIN's CollectaCard
Bahamut SIN appears as an enemy in Battle Music Sequences.
Bahamut SIN appeared as the final boss of the The Lone Wolf's Lament - Cloudy Wolf Challenge Event in the "Monumental Battle" dungeon. While it can use Megaflare as a normal ability, as well as Gigaflare and Petaflare as interruptible charged abilities.
Bahamut SIN appears in Final Fantasy Trading Card Game with a Fire-elemental card.
The Bahamut SIN figurine measures approximately 7" tall with a display base, and is sculpted for Kotobukiya by Takayuki Takeya. Bahamut SIN is also part of the Creatures Kai Vol. 1 collection.
Etymology and symbolism
The 震 (Shin?) in Bahamut SIN's Japanese name derives from the Japanese fighter plane, the J7W1 Shinden (震電). 震? means shake or tremor. It is also likely a pun on the English word Sin which transcribed into Japanese (シン, shin?) would be pronounced the same. Sins is a theme of Advent Children.
Bahamut (Arabic بهموت Bahamūt) originated as an enormous whale in ancient pre-Islamic Arabian mythology. Upon Bahamut's back stands a bull with four thousand eyes, ears, noses, mouths, tongues and feet called Kujuta (also spelled "Kuyutha"). Between each of these is a distance of a 500-year journey. On the back of Kujuta is a mountain of ruby. Atop this mountain is an angel who carries six hells, earth, and seven heavens on its shoulders.
Another version of the Arabic story is that Bahamut is indeed a dragon and he stands on a whale called Liwash.
In modern times, the game Dungeons & Dragons is responsible for re-imagining Bahamut as the king of dragons, a benevolent Platinum Dragon; the opposite of the malevolent Tiamat, the five-headed Chromatic Queen of Dragons.
Bahamut SIN's design was inspired by the culture of the Jōmon period in Japanese history, as its designer Takayuki Takeya felt that Bahamut's image of a winged dragon was set, and he wanted a particular aesthetic to make Bahamut SIN more unique from other incarnations.