Sephirot

Sephirot, the Fiend is a boss from Final Fantasy XIV, who is set to appear in version 3.2, The Gears of Change.

Story
Sephirot, the Fiend, was a deity once worshipped by a tree-like race native to Meracydia. Brought into being for the sole purpose of repelling the Allagan invasion, Sephirot inflicted ruinous losses upon the imperial army before finally being subdued and imprisoned in the central facility of Azys Lla.

Millennia later, this immensely powerful entity threatens to awaken, his vengeful dreams disturbed by the careless ambitions of Archbishop Thordan VII. Topple the first pillar of the Warring Triad, or wheresoever his colossal shadow falls shall be visited by unthinkable catastrophe.

Creation and development
Sephirot and the other two deities of the Warring Triad were based on their Final Fantasy VI counterpart. Sephirot itself was inspired by the Fiend.