Limbo, the Plane of Uttermost Chaos

Limbo is sometimes referred to as Morphosis, Primordius, or the Sea of Eternal Change.

The Court of All Flesh

As with all things in Primordius, the Sea of Eternal Change, the favor of the Lords of Chaos is quixotic and fluctuates constantly. Currently, the six members described here hold the favor of the White King and Red Queen. But the only constant in Primordius is change. At any moment the Court of All Flesh could be rearranged or replaced completely. Warlocks and dark priests of old still consider all these courtiers as newcomers on the stage, and they lament the passing in favor of the Unseeing Karras Vor and the Reflection of Mor-Lu, whom they consider greater and more powerful than these lesser beings.
Formerly the Red Prince, Maladar Dictum schemes to regain his position. Lord Rall, his retainer, and the Queen of Bone would both like to see their prince return to his rightful position beside the Red Queen—or better, they would prefer to see him take her place. But more, even more than that, they each scheme to take their own place on one of the Thrones of Chaos, awaiting the moment when they will betray their lord.
Unchanging Changers. Members of the Court are beings of pure chaos. Any attempt to force them to change form simply passes through them. There is nothing substantive about them. No quintessence for a spell or ability to manipulate.
Not Evil. The Changing Ones are not evil. Indeed, they arrive in the Mundane World committed to helping the character who summoned them, even dying for them. They care not for good, nor evil—they are opposed to law, to tyranny, to any force that attempts to slow or stifle change.

Baron Malgas

The newest lord of chaos, Malgas clawed and scraped his way into the lowest rank of the Court and is only getting started. His barely disguised contempt for Maladar Dictum doesn’t prevent him from coming when called, though. Malgas is no fool. Malgas enjoys boasting and taunting his enemies. He is a theatrical character, new to power and fulsome in it. He acts as though he is already chief of the Court and openly disparages the other members while they’re not around.

“Come Sons and Daughters of Order! And meet

your ender!”

Korsoth Vastikan

Once a rival to Maladar Dictum, then-Duke Vastikan was brought low by a mob of ratcatchers. He returned to the Sea of Eternal Change, licked his wounds, and conferred with the ghosts of forgotten sages chasing the lore of formkilling.

Now, armed with this ancient knowledge, Vastikan has clawed his way back into the king and queen’s favor. He is a hunter, a thief, and a master of deceit. His voice is a low whisper, a sneer. He does not like the Mundane World, finding it overly suffused with law.

The Queen of Bones

Rival and sometimes companion to Maladar Dictum, the Queen of Bones is the Chaos Priest of the Court of All Flesh. She was once the White Queen, but her husband, the King of Blood, was annihilated in the Battle of Kalas Mithral by the Knights of Axiom under the leadership of the Inexorable Will.

Dethroned. In the eons since, the Queen has risen and fallen and now finds herself allied to Maladar Dictum. Theirs is a marriage of convenience. Each sees the leverage the alliance brings them. Neither expects more from the other than the other will give, and it is perhaps for exactly this reason that neither has betrayed the other in their long years together. What would be the point? Each is already acting in, and only in, their own best interests. They hope, by nurturing this court, to challenge the current King and Queen of Chaos.
The oldest surviving member of the Court, with the possible exception of the madness-flesh Uursovk, the Queen is languid and slow to anger. She looks at her enemies with mild annoyance. They are temporary. Change is eternal. She will show them. 
She rides an animation of skeletons harvested from the creatures she’s killed. They are not undead, more like a moving sculpture. The Queen is an artist, with bone her preferred medium. Ideally the bones of the living.

Lord Rall

The Vizier of the Court, Lord Rall is Maladar’s personal wizard. Once Lord Rall had a more conventional form, but he forgot it somewhere and never seemed to notice. As he demonstrates in battle, he can reform himself out of any old organs you may have lying around.

Chaos Strategist. Rall is precise and surgical. Tactical. He likes experimenting on his enemies. He is fascinated by creatures with one set form. Creatures who find their identities wrapped up in their shape. How strange, Lord Rall thinks. Imagine what a different person you would be if you wore your brains on the outside. Or if you had many fewer, or many more, limbs. Only fools fear change.
Rall has no ambition, does not plot or scheme. For this reason he does not rise higher than vizier to this, the lower court. But neither does he need fear betrayal.

Uursovk

The Mad Oracle, the Madness-flesh, Uursovk may once have been a king or queen of Chaos itself. No one remembers that far back. Rumors are easy to come by, tales of things older than the Thrones themselves. Things of pure changing power, with no minds, no will except to remake the universe in their own terrible fluctuating imageless images.

Uursovk is the only member of the Court who is vulnerable to shapechanging magics, lacking sufficient will to prevent it.
Eldritch Form. Any image of Uursovk is by definition a facile rendering by lesser minds. Gazing upon the Mindwiper, one sees organs and limbs twisting and reshaping. Often one feels one is seeing many sides of the same beast at the same time, or an amalgam of many different creatures each superimposed over the others. But this is no image—their limbs meld into each other, twisting in torturous ways. Often the various appendages shudder, as though the creatures who once had these body parts are suffering incredible agony.
The smell itself is enough to choke someone, a rotting abattoir of putrid maggoty meat. Uursovk is also known as the Oracle of the Court of
All Flesh, occasionally making prophetic pronouncements that often come true. Uursovk’s madness in no way impairs his second sight.

Maladar Dictum

Currently one of the Dukes of Chaos, Lord Dictum serves the Red Queen. He is ambitious and plans to replace both the King and Queen... but so do all the Dukes and Duchesses of Chaos. For now, Dictum bides his time and waits.

Resentful Hunger. Dictum does not enjoy being pulled to the Mundane World and forced to do the bidding of uniform mortals. The Red Queen knows this, and enjoys dispatching Dictum.
What she may not know is that Maladar has the power, alone of all the servitors, to summon the other members of his court. This means His Grace may have power beyond the Thrones of Chaos. He may know something the other members of the court do not. If he summons the rest of his court in some other realm, who knows what new court of Chaos might be established there. Maladar chafes at his summoning and openly yearns to unleash his power on whatever universe he finds himself in. But... the Red Queen commands, and Maladar Dictum must obey. For now...