Scion created to rid the world of its impurities by swallowing them within himself, in opposition to Nabriales the Majestic, scion of light. The world, however, was more filled with impurity and corruption than even the gods dared imagine, and having swallowed it all, the once beautiful Cúchulainn was transformed into a hideous thing, a deity of filth, and so did he turn against his creators. Wherever his feet should fall, there all life withers to dust.
Cúchulainn the Impure (/kəˈhʊlɨn/ in English, although the Japanese name suggests it should be pronounced /kjʊˈkʊleɪn/, cue-cuh-lane) (不浄王キュクレイン, Fujō Ō Kyukurein?, lit. Cúchulainn, King of the Impure), also written Cuchulaínn, is a creature from the world of Ivalice. Cúchulainn has appeared as both a summon of Poison and one of the Lucavi, and is always associated the sign Scorpio, the Scorpion, shown by his poisonous nature.
Cúchulainn is associated with the element of Poison, and is also referred to as the Vrishchika Ascendant, which is the Sanskrit name of its zodiac sign as used in Jyotish (Hindu) astrology. To strengthen his relation to the Scorpio sign, he is given an enormous tail hidden inside his body.
The Impure, his touch is poison and death.
Cúchulainn reappears, along with the other Espers. He is the Rank 2 Melee Water summon, unlike the other Final Fantasy XII Espers who are Rank 3. As a result, and in contrast with the other Espers, Cúchulainn has a small sprite and more than one can exist in the party at once. There is no condition to unlocking him, save for reaching his node on the Ring of Pacts.
He keeps his signature moves Malaise and Blight, which Poison enemies.
Cúchulainn (also known as Queklain) is the first Lucavi fought and uses many powerful status attacks.
Cúchulainn possessed the corrupted Cardinal Delacroix of Lionel, who further uses the Baert Trading Company to seize the Taurus stone from Besrudio Bunansa. Ramza Beoulve and Mustadio Bunansa halt the company from obtaining the auracite.
Delacroix uses Princess Ovelia as a hostage to obtain the Taurus stone from Ramza and Mustadio, but they infiltrate the castle and confront Delacroix directly. He uses the stone to transform into Cúchulainn. Despite his efforts, Cúchulainn is defeated by Ramza and his forces and sealed within the stone once more.
Cúchulainn appears as a Scion. He can be called by anyone equipping the Tainted Cufflink when the Smash Gauge is orange. He uses Blight to damage and poison all foes.
Cuchulaínn appears as a boss and an EX boss. In his EX boss form he is called Cuchulaínn II. This version of Cuchulaínn is based off the Final Fantasy Tactics version. He is first introduced as an event boss in the event, Final Fantasy Tactics - Truth is Forever Main Story. He is found in the Deep, deep dungeon following entry into the Lionel Castle Gate. In the following event, Final Fantasy Tactics - Truth is Forever Extra Event, he is found within the Lionel Castle Interior. His boss attack is Biora and his EX boss attack is Bioga.
Cúchulainn appears with his Final Fantasy XII render and Final Fantasy Airborne Brigade artwork: the first, released on both series 3 and 7, is an Aqua-elemental Summon card, the second is an Aqua-elemental character card with the Bioga ability.
Cúchulainn is an Irish mythological hero who appears in the stories of the Ulster Cycle, as well as in Scottish and Manx folklore. "Cú" is the Irish word for hound—"Cúchulainn" is literally "Hound of Culainn". "Cúchulainn" is technically mispronounced in the series, being closer to "coo-hullen" as audible in the following reading from Irish myths by Ronnie Drew via youtube.
The son of the god Lugh and Deichtine, sister of the king of Ulster, he was originally named Sétanta, but gained his better-known name as a child after he killed Culann's fierce guard-dog in self-defense, and offered to take its place until a replacement could be reared. At the age of seventeen he defended Ulster single-handedly against the armies of queen Medb of Connacht in the epic Táin Bó Cúailnge.
It was prophesied that his great deeds would give him everlasting fame, but that his life would be short—one reason he is compared to the Greek hero Achilles. He is known for his terrifying battle frenzy or "warp spasm", in which he becomes an unrecognizable monster who knows neither friend nor foe. He fights from his chariot, driven by his loyal charioteer Láeg, and drawn by his horses, Liath Macha and Dub Sainglend.
It is also referred to as the Vrishchika Ascendant, which is the Sanskrit name of its zodiac sign as used in Jyotish (Hindu) astrology.