Elysium, the Plane of Uttermost Good

Elysium is home to devas and other angels, and visited by many Good aligned Gods in order to discuss what need be done to promote their agenda on the material plane. Rarely do they send an angel or deva to the material plane with subjugation in mind, but they are sometimes sent on exploratory missions or to convey messages.

The Celestial Court

The deva, planetars, and solars are beings beyond the ken of most mortal worshippers. For mortals worthy of aid, for those who pledge their life to defending the helpless and opposing evil, the gods of good and righteousness send lesser servants, the Celestial Court. These are not beings that demand worship, nor would you gain any benefit from doing so. The Celestial Court are sent to aid allies of Good when Evil takes too many steps forward in the material plane. Gods will sometimes gather in Elysium to discuss where to send their servitors, or what pacts they should use them to fulfill.
The home realm of the Celestial Court is unknown in this day—if the ancient empires knew of it, that knowledge has not yet been rediscovered. Modern sages believe each member of the Court exists as a thought in the minds of the gods of goodness and righteousness, and when summoned, they are created. In some sense it is known that the Court of Paradise or Court of Heaven, as they are sometimes called, serve all the worthy gods. These creatures may have no home plane, unlike the other servitors.
These beings are utterly alien. They are the manifest will of the gods, and their nature is unknowable. They can communicate, but their words are a string of open poetry and verseless rhymes. Scholarly consensus is that these words are untranslatable gibberish, but a few opinions differ. One problem in translation is that each person who hears any member of the choir invisible seems to hear different words. This led sages for centuries to assume that there was nothing to translate, seeing the mortal mind as incapable of holding the thoughts of the Court in it.
Others, undaunted, argue that this just means more collation is needed, and that if enough listeners wrote down what they heard, and these transcriptions were compared, meaning—perhaps oracular meaning, warnings of catastrophes to come—would be revealed. All the Celestial Court are angelic beings, and their weapons are considered magical and do bonus radiant damage. They all project an aura of protection against evil.
As far as theologists and philosophers can tell, there’s only one of each of these beings. They cannot be killed by any power less than that which kills gods. Death on our plane is just a failure of their manifold projection into the timescape.

Princip

Herald of the Righteous Power, the Princip arrives ready to crown an ally, bestowing on them a greater destiny, granting them immunity to spells that charm or dominate and raising one ability to god-like levels. The character so crowned feels a rush of divine power, a tiny fraction of the same energy all the Celestial Court are made of. Apart from the blazing crown over their head, their new power manifests as beams of light shooting from their eyes, their skin flashing to gold in an instant, or their hair turning to blazing, heatless fire. Upon losing the crown, they feel a period of melancholy as their previous greatness flees, leaving them mortal, again, and lesser.

“Behold! The power arises! Leaves fall, men die, yet all shall be consumed by the endless river of glory!”

Authority

Pretty much what you’d expect from an angelic being called an Authority. It is the knight of the Celestial Court. What paladins would like to be when they grow up. The Authority arrives on our plane in heavy armor, armed with the Brightsword and looking for evil to smash. It is responsible for maintaining celestial order, and while it’s still absolutely committed to smashing evil, it tends to smash chaotic evil a little more than other evils.
The Authority sometimes appears spontaneously in times when a good king or democratic civilization is facing an existential threat. It seems concerned with the fate of the human race. Whether this represents some kind of political stance on the part of the Celestial Court as a whole, or a priority peculiar to the Authority, is a matter of great debate.

Badrashanti Dar, a sage from the Shauraseni Empire speaks of “an angelic host clad all in golden mail with six wings and a burning helm” who strode across the battlefield of the last Shauraseni emperor thousands of years ago. This is the earliest known record of the creature that is recognizably the Authority. Dar records the being as pronouncing judgment on the battlefield, saying, “Ours is to defend the children of the earth!” But this translation is debated, and there are none left who speak the sage’s language natively.
If Dar’s record describes the Authority, then there is reason to believe the Authority has been a part of every decisive battle between good and evil in the last 5,000 years. Sometimes affecting victory, sometimes being overwhelmed. But in each instance allying itself against tyranny and cruelty. The gods, it seems, have hope for the human race and send their greatest servants to bolster that hope among mortals.

Virtue

A collection of mouths and hands that arrives and sings power, which is a totally normal thing to do. The Virtue is the Word of the Gods, and that word is death to evil. These songs are not spells, so magic resistance does not affect them. They are divine words spoken by a creature sent by the gods.

That being said, you could just plug your ears (becoming deafened). They are actually songs. If you can’t hear them, you are not affected.

Dominion

The Dominion is the censure of the Celestial Court. It is both enemy to evil and ally of good. They are deeply judgmental and arrive on our plane full of opinions regarding which of your allies are worth helping. They’re not the most powerful of the Court, but they act like it.
History records several instances in different ages and cultures when the Dominion arrived without summons. This is rare, and when it occurs it is usually to identify and capture some fugitive, enemies of the great and good who have escaped the justice of the Celestial Host and now jaunt across the timescape looking for aid. The Dominion, in her role as celestial cen- sure, brooks no compromise and will follow the planar outlaw across a million worlds if need be.

It is not unusual for the Dominion to make oracular pronouncements, but given that her speech is a cryptic, stream-of-consciousness open poetry, it’s unclear whether anyone has ever properly decoded her intent. Instances where, in retrospect, it seems as though a mortal was able to make sense of the Dominion’s pronouncement could have been pure coincidence.
The Dominion is so impressive and the force of her presence so overwhelming it’s not unusual for a mortal to try to glimpse the face under the veil. As far as history records, no one has done this and retained their sanity long enough to report on what they saw.

Throne

The Throne is the jailor of the gods. It quarantines evil by trapping it and burning it. It refers to itself, variously, as the Key and the Cage. It is one of the less communicative in the Court, if that is possible, and has its own motivations, which it does not reveal. It is so dedicated to removing evil from the world that it won’t obey its master. It chooses its enemies based solely on their commitment to evil powers, not the threat they pose in combat.
It’s not uncommon for a battle to end with a creature imprisoned within the Throne, only for the Throne to return to its home plane with the creature, presumably removing it from our world forever. Though...the kind of enemy who can survive that and return to our plane would be a memorable villain indeed. The Throne is the hereditary enemy of the Order of Desecration.

When it imprisons an agent of evil and retreats back to wherever the Celestial Host abide, it takes its prisoner with it. Only the most powerful and experienced rangers of the timescape can even attempt to follow. The tales they tell upon returning are confusing and inconsistent.
Each of those who survive the Throne’s imprisonment and return to tell the tale describe the realm of the Celestial Court differently. Some describe an island with green grass and tall white marble columns. Some describe a vast field of wheat where prides of lions lounge under a brilliant blue sky. Or a thick forest with tame woodland beasts and ripe fruit hanging from the trees.
Whether these are different places, different regions of the same place, or some manifestation created from the mind of the imprisoned is not known. Only the Knights of Desolation know the secret of gaining access to that realm, and they will not reveal what they know.

Seraph

The greatest of the Celestial Court, the Seraph devastates anything on the battlefield foolish enough to oppose the heroes, taking special interest in evil creatures, obviously, but also in chaotic beings. It just vomits damage onto everything and everyone. It has the same telepathy the rest of the Celestial Court have, but it rarely uses it for anything other than shouting single-word epithets into people’s minds. “Burn!” “Finish!” “Exult!”