I like this fal'Cie!
Phoenix is a fal'Cie of Cocoon in Final Fantasy XIII. It floats in the middle of Cocoon and maintains the planetoid's climate and weather like a giant artificial sun. Like many fal'Cie, Phoenix is named after a recurring summoned monster from the series, a bird associated with fire element and rebirth, befit of Phoenix's role in Final Fantasy XIII as a floating fal'Cie that shines blazing hot during the day. It has a somewhat insectoid appearance with a colossal dome in the middle that resembles an electric light bulb and is the part that lights up.
Cocoon's own light in the sky, Phoenix is a Sanctum fal'Cie tasked with providing warmth and illumination. It floats at the center of Cocoon's inner atmosphere like a miniature sun, bathing the surrounding world in its radiant glow.
It is the fal'Cie who are responsible for Cocoon's climate, regularly adjusting weather as deemed necessary. Just as Phoenix regulates daylight, other subordinate fal'Cie maintain patterns of wind and precipitation.
While Lightning, Sazh, Vanille, and Hope are trying to escape from PSICOM in their airship, they encounter Phoenix. Lightning tells Sazh to fly into it to evade the enemy forces, but their ship gets damaged by its arcs of energy while weaving between them and they crash into the Vile Peaks.
Phoenix's light dims following Orphan's death. Its light slowly fades, setting Cocoon into darkness. Despite this, Phoenix still appears to be around in Cocoon's crystallized remains, although weakened. In the Brain Blast quiz in Academia 400 AF, it is revealed that every few centuries the light emitted by the fal'Cie Phoenix will flicker, causing a moment of darkness. This phenomenon is called Flames of Rebirth, Phoenix's signature attack as a summoned monster.
phoenix or phenix (Greek: φοῖνιξ phoinix; Latin: phoenix, phœnix, fenix) is a long-lived bird that is cyclically regenerated or reborn. Associated with the sun, a phoenix obtains new life by arising from the ashes of its predecessor. According to some sources, the phoenix dies in a show of flames and combustion, although there are other sources that claim that the legendary bird dies and simply decomposes before being born again. According to some texts, the phoenix could live over 1,400 years before rebirth.In Greek mythology, a