Primordas

The Progenitor of Elementals
Before the gods came into existence, there were beings of unfathomable power, Primordials. These bastards of creation roamed purposeless, ruled swaths of elemental chaos. and rivaled the newcomer gods. In the War of Divinity, the Gods hunted and destroyed most of the elder entities, but some proved too powerful for them to vanquish. One such example was Primordas, The mightiest of the primordials was fashioned from the four core elements and intrinsicly tied to the elemental chaos that birthed it. The Gods attempted to slay Primordas time and time again but were rebuked each time. And so the gods performed their first combined divine act and split Primordas' power into the Four Elemental Lords, and fashioned from the Elemental Planes a new realm, the Prime-Material Plane to house the corpse of the Primordial to lock it away from its children.

While Primordas is not an active player in the Divine balance, its influence can be seen in its children. The Elementals defy the control of the gods, refusing to acknowledge their dominion of the cosmos. Truly, any worshiper of the Divine should be wary when summoning an elemental, for they are just as likely to strike their summoner as anyone else.

Excerpt about Primordas
"Before the gods created Prime-Material Plane, before the Astral Sea spewed forth the Outer Planes, before even the split between divine and mortal. Within the coiling chaos, at the center was a spark that held the four, Air, Earth, Fire, and Water. When the young godlings came and bore witness, they called It "Primordas", for It was first and mighty.

The Light spoke first, 'Brother, be with we who ignite creation.' The Twins spoke second, 'Preceptor, reveal the ways of the cosmos.' The Spinster spoke last, 'Forerunner, abdicate your rule of existence.'

Primordas stood still through the requests of the nascent gods until Its mouth spoke with a cacophonous reverb. 'Who are you to command that which was before you? You who could not bear my load for even a moment.' The Others took offense to the Spark's accusations, 'Release then your burden and witness our power.'

The Eldest yielded its grip and bore witness to the incipient gods abilities. Together they attempted to bear the strain of the Four but their fledgling powers were not enough to bind the opposing forces together. The Four split and fled from the younglings, spreading their chaos throughout the Astral Seas.

'See your mightiness you wretches, you who are intoxicated with your hubris, who could not even assemble the foundations of creation.' Shamed by the Elder being, the inchoate gods retreated from the center to create their own abodes to rule over. Primordas split portions of itself into its charges, birthing children who would hold each of the four.

Grasping a piece of each, It fashioned a new domain. Its task complete, It laid to sleep within the center. And so the Prime-Material Plane was formed." -The  Stoicheio Momentus, iXII.II