Imix

Imix's main dwelling is the Temple of Ultimate Consumption upon the Plain of Burnt Dreams, an island in the Burning Sea on the Plane of Fire. His temple is an imposing sight, formed as an inverted pyramid of black obsidian with an opening on top that constantly spews lava and cinders. It is said to contain many portals to the Plane of Magma and the Plane of Earth, where Imix counts his most loyal allies.Imix is quick to answer calls from the Material Plane, since he hungers eternally for new forests, plains, and kingdoms to burn.
Most creatures on the Plane of Fire count Imix as their lord and master, willingly and happily serving him. Even those who form pockets of "neutrality" -- such as the ifrit of the City of Brass-- respect, admire, and even actively assist the archoelemental.
A key supporter of Imix is the pit fiend Asgeroth, who opperates the military campaign on the Plane of Fire against Zaaman Rul. The pit fiend originally hails from the Nine Hells, but Imix offered him a powerful alliance that was difficult to pass up, due to the difficulty of moving up through the ranks of the Devils.
The fire creatures serving him are notable, but so is the relative paucity of actual fire elementals, many of whom seem to bend to Kossuth's will instead. Kossuth, as an actual deity, outstrips Imix in terms of raw power, though the archoelemental is a more active force in general on the plane.
Imix is seeking to lay the final blow on Zaaman Rul, whose recent failed rebellion was, according to Imix, doomed from the start. Zaaman's forces have been routed, but not truly eliminated, and many practice asymmetrical warfare against the larger, more dominant force on the plane.
If Zaaman Rul is a pest, the nature of Imix's raw rage at Olhydra is something more of a mystery. Said to be his cousin or his sister, and certainly similar in philosophy, Olhydra hardly seems worthy of the fury Imix lavishes on her. He considers Olhydra his main adversary, and works constantly against her, to destroy her and all of her creations.

Personality Characteristics

Motivation

Imix is almost exclusively consumed with killing Olhydra. He does wish to end Zaaman Rul's rebellion, and to wheedle off Kossuth's control of the elementals, but all of this pales in comparison to his need to destroy his relative of differing elemental nature. The reasons for this are largely unknown, but since the archoelementals don't generaly participate in pointless elemental rivalries (Cryonax certainly isn't hunting for Imix's life, nor is the Prince of Evil Ice Creatures at all concerned with taking out Zaaman Rul), the reason must be something more than a simple "fire vs. water" dichotomy. She seems to share this hatred, and discovering what boils between them would certainly be highly valuable information (and information that would be dangerous to learn).