(General POV)
Location the Plague Garden-The Fungus Lands
At the northeastern edge of the Garden, is where the Maggotking was heading.
After obtaining the human vassals now turned into bloated, cyclopian daemonhosts which serve perfectly as they are currently the second faster troop within the Plague God's army right behind his lovely Rot Flies, but returning to matters at hand, Nurgle was busy choosing the perfect spot to grow and spawn his newest daemons.
Daemons based of the greenskin xenos, the Orkz which is the way for a fungus based lifeforms the best place is amongst its own kind, hence him traveling to a specific part of the Garden.
Far to the north-east, beside a nameless mountain range (future sight and border between Nurgle & Tzeentch, the Bridge of Fools) this location is the Fungus Lands.
The most damp, humid, and quite literally most fungus infected part of the whole Garden.
Their were spores, mushrooms, and all sort of other fungi in that location, and various sizes and mutations, that land is nearly inaccessible for the various spores and other things that attack and latch onto those that enter the Fungus Lands only Greater Daemons or higher can traverse it and survive unaffected.
Cause of this and the many special conditions of the area it will serve perfect as a spawning area and territory for these new daemons that Nurgle has named the Plague Brutes.
Because Nurgle has a feeling that amongst his children, these new little ones are going to by far the most aggressive and rambunctious of all his family.
Which in truth made the Rot Lord, quite happy and glad he listened to his brother suggestion in absorbing the orkz so he is able to create these Plague Brutes, the Grandfather is always happy to accept new members into his family, of any kind.
Stomping his way through the Garden he eventually arrive into what can be considered a literal forest of only mushrooms and fungi in front of him, smiling with his sharp-teeth with maggots, worms and parasites wiggling between said teeth and bloated, warted lips, Nurgle proceed in deeper into the Fungus Lands.
Once in the center where the tall, entangling mushrooms were just in front of Nurgle, the stems have rotting bodies and skeletal remains of various species, serving as fertilizer for these fungus.
Nurgle laughed, as he spread his bloated arms out wide, as he though "This is...the...perfect spot!!! My...new children...shall...flourish...and cultivate...greatly...here!!!" Nurgle continued to laugh joyously, that he started to once again cough and hack from the delightful, numerous illnesses and infections that his lungs possess and continue to gain as time passes.
Once he got his laughter and coughing fits under control, Nurgle approached the "Death Grove Caps" as these mushrooms are named, he gently reached out and grabbed onto the stems, said stems started to gently coil around the bloated, green arms of their dark master, welcoming him and allowing him direct connection to the fungi-network underneath the green ground.
This is exactly as Nurgle wanted, as he began to focus his ruinous powers, bending the area and the Warp-energies around the Fungus Lands, causing a mayor overgrowth of the fungi of the entire location.
As the very Death Grove Caps, were the most susceptive and influenced by Nurgle's power and commands, growing exponentially surpassing even the titanic Plague God as well.
Still bound to his arms as they grew and from underneath the earth arouse a massive tumorous like mass, with the vines directly entangled and connected to the mass as it has several holes that were oozing, glowing green openings all over the mass.
The largest hole which is actually a massive, deep tunnel that connect to a core chamber were all the fungus of the area will feed nutrients and energy to spawn Plague Brute.
A literal cycle of renewal and recycling energies and rot to spawn an endless army of daemons able to brutally strike at the enemy from either close or afar.
As the Plague God mentally commanded the stems to release him, and they obey he backed away a bit so he can see the birth of his latest daemons.
It didn't take long for Nurgle to start hearing the echoing sounds of moaning, groaning, and twisted growling.
As dozens pairs of glowing green eyes, could be seen shining through the tunnel of the Death Grove Cap-Burrow, and soon dozen of muscular but at the sametime bloated orkish like daemons started to emerge.
Having a lot of similarities between them their base material, with the exception of the several puss, sores, boils, and infected skin tissue on their sickly green flesh, possessing plaguebearers like horns in their skulls, with either a pair or one single eye in these daemons.
Some have exposes organs and innards from their bloated bellies, sickly nails, and sharp, filthy teeth, along with some bone spikes pertruding from their shoulders and collar bones.
(For a better reference look up Goggle: Nurgle Orkz, and that's basically what they look like only I added some plaguebearer traits to finish the look.)
Nurgle was excited as more and more plague brutes were emerging from inside the burrow, big, bloated, fierce, and filled with countless of the Grandfather's gifts.
They all gave Nurgle a twisted smile, as they were ecstatic to meet and see their dark master and creator, laughing, dancing, and expressing their eagerness to crush, stomp, and infect others in his name...Nurgle was sure to make them around 8%, smarter than average, normal orkz, which meant compared to the orkz, the Plague Brutes are geniuses.
Nurgle amplified their strength and durability, to be at the level of the future Plague Marines of the Death Guard, plus with them being "born" from the Fungus Lands itself they'll be immune to the fungi that sprouts there, and not only that Nurgle left their unique crafting abilities so they can create range weaponry and modify the plagueswords and doom bells that will serve as their perfect weapons in the upcoming wars.
Papa Nurgle told them that Fungus Lands is there to tend and watch over, but their more than welcomed to wander and experience all the joys and wonders within the Plague Garden, as they cheered for this news, with all finished Nurgle bid farewell and started to leave all that was left is to create the new equipment for Ixion, aside from the avatar Undivided state, his was the most equipped but there was still room to improve.
With that the first ork based daemons of Plague and Blood are now spawned, and apart of their respected Dark God's legion, with Nurgle's Plague Brutes immediately starting to explore and tend to the Fungus Lands, as the Maggotking returned to his mansion to start making his new gear for Ixion Daemonhart.
Location the Nethervoid-Castle Neo Oblivion, Rooftop Garden
Laharl returned from the Dark Labyrinth, having created his daemonhosts and releasing them on the Nethervoid, they'll prove quite useful in the upcoming battle in the Old World.
Knowing the ability of daemonhosts, not only were they physically stronger, but some were even capable of using Psyker power of Chaos and their aligned God, that plus being able to use any weapon imaginable made them, a serious asset in not just the legion of Carnage but Chaos as a whole.
While thinking and contemplating this Laharl visited Chi's rooftop statue garden, he was relaxing there and thinking of his next project which was creating a piece of equipment, exclusive to their avatar's Carnage state.
But then another though came to Laharl's mind, involving a Warp or Chaos Daemon that while their miniatures were quite weak, in lore their considered quite vicious, and extremely deadly in group...Chaos Furries.
They can be a great boon to all the Warp and forces of Chaos, if they've spawned earlier, this was Laharl's thoughs with them all forces of Chaos would gain more air-support, plus once they brought some of the furries with them to the Old World, the furries of that world would be drawn in drastically enhancing their numbers.
It was a simple but very effective plan, and with his own [Infernals & Creator] creating them should be quite a breeze, he wouldn't have to waste a FAC, or summon them with the Infinity Fountain and Void Gate.
So since this wouldn't take long or be too difficult, before actually creating the equipment for Ixion, the Dark One decide to make and spawn Chaos Furries earlier in the 40k world, those winged imps would cause untold chaos in any DarknGod that align or don't.
Plus Chaos Furries can align themselves with any of the forces of Chaos, the Dark One will admit he was curious to see a Carnage Fury, or even a Corruption/Ultnarth Fury.
Being one of the few true unaligned daemons in the lore, he can eventually include other such as Ogroid, while most serve Tzeentch these creatures in AOS are a former destruction race that turned to Chaos to beat Gorkamorka, which is the combined form of magical Gork and Mork.
The ogroids would be a great addition to their forces, but he though against since most commonly join Tzeentch he'll create them, after the Changer of Ways is completely sided...and bound by Laharl's own [Oath] divinity or whatever that divinity's final ascension would be.
Once that occurs they can all some peace of mind that Tzeentch won't screw with them...as much as he would if not bound, Laharl he'll add the Ogroids to their world.
Laharl then thinks of his future brother's most infamous daemon, that is the ultimate troll and chaos-maker of all, the Changeling if he hadn't accepted to unite Chaos...or survive the wrath of Absolute Chaos, for refusing their task in a hypertetic scenario....he knows that the herald would cause so many disputes with his siblings, making the Dark One glad he has a bound and close relationship with Khorne and Nurgle.
Soo the Dark One stood up from the ornate steel chair that he was sitting, and relaxing from, unfolded his six wings and in with huge flap of them, launched himself to the maroon sky of the Nethervoid.
The Dark One flew towards the east...
Location the Far Within the Realm of Chaos
The Dark One flew pass the three current primary realms of Chaos...the Nethervoid, the Blood Lands, and the Plague Garden.
In a desolated, unclaimed part of the realm, the Dark One landed on this floating island detached from any of the infernal realms of the Chaos, this spot perfectly suited daemons of the undivided category.
Landing and dusting himself off, the Dark Harbinger folded his wings over himself and looked around in the island.
It was just a island with some sharp mountains, which the Dark One thought it would serve as the perfect territory for these daemons as the multiply through the Warp-energies of Chaos, and eventually start migrating to one of ever increasing realms of the Dark Gods.
This island had everything that those winged imps of Chaos Furries could need, so it was fitting to name this location the Isle of Furries.
The Dark One stretched out his arms pointing them at the mountains as he began to channel his divinities' [Infernals & Creator] powers, this caused the Warp-energies around the area to converge and surge into the island, alerting the other two Chaos Gods to his latest machinations.
Both Khorne and Nurgle were interested with what new creation their brother was making, but what really earn their attention was the fact he was creating something outside of his domain, the Nethervoid, so both of them temporarily left their own realm and headed towards their elder brother's location.
Of course as the Dark One was busy creating not only a new daemon race but there own domain outside the Influence of a Dark God, (Lore states that Furries are just daemons that roam the Warp/Realm of Chaos, probably the creation of one of the lesser known Chaos Gods, but regardless they don't have much lore, so I'm free to make up their origins.) he senses his younger brothers approaching his location, making the Dark One smirk since things have really changed, since he has become a Chaos God, now the Dark Gods were able to leave their domains without worry in cannon no matter the situation none of them could or would leave their realms regardless of the situation...now look at them, he, Nurgle, and Khorne have grown to trust each other to some extent that they could leave their realm unattended while they personally handle any situation.
But he remained focused on the task, he has, eventually both the Rot Lord and the Blood God arrived on the floating island, before either could ask "what their brother was doing?" they sensed the growing power of the Warp, bending around them and Laharl.
So they remained silent and watched as the God of Creation continued to work.
The sharp mountain before started to shake, and expand in size as multiple caverns were busting all over the mountain, it resembled a insect den from the side of a wall in the eyes of the Gods, a perfect den for the impish daemons that will soon inhabit it.
Then the screeching sound could be heard throughout the island, as hundreds upon hundreds of yellow glowing eyes started to appear across all the mountain cavern entrances, as the screeching got louder as a black swarm of winged imp-like daemons came pouring out the mountain.
(For reference these furries resemble more their latest Age of Sigmar, minis of the Slaves of Darkness box-sets.)
These daemons spread out all across the island, flying iratically above all three of them, now they resemble more gargoyles in the opinion of Laharl, as Khorne who called to him asked, "Brother. What are these Neverborn? And why do they not emenate the essence of Carnage, despite being created by you?" Laharl understood his brother's confusion, aside from Enzium he has never created undivided daemons before, and Enzium was with the aid of his brothers, this is the first time he created an Undivided Neverborn ever.
Turning towards his brothers, he crossed his arms as he addressed them directly both, he told them about the infamous furries that roam the Old World, and many centuries later they started manifesting in their homeworld, while not as used or perseved useful from their future Chaos Astarte Legions, they are vicious and deadly while attacking in groups, plus as he was about to continue to explain some of the furries landed on all of their shoulders, immediately starting to corrupt and turn to the furries chosen Dark God.
The ones on Khorne, turn red skinned, becoming slightly buffer, their teeth and claws grew in length and sharpness, they grow dark red horns and thicker reddish furr.
Those on Nurgle, became green skinned, and very sickly, some even became cyclopian like most of his daemons are, with short antler like horns sprouting from their heads, their wings withered a bit and their skin gained boils and thick yellow pustules on them.
Lastly were the furries that landed on Laharl, they became a dark violet, growing very long tongues, their arm became larger with long, large, razor-sharp claws, with black barbs trailing down their spines all the way to their new black devil tail's base.
Looking at them all Laharl was greatly please he added this slight or great difference from Old World, Chaos Furries, which is they absorb and turn in greater affect at the Chaos God they choose as a eternal master.
Cause let's be real even the furries in the TWW-3 game they didn't gain a mayor change except for the tzeentchian one, and that was just a beak, so the Dark One made sure to give them greater affect and power, which will obviously make them a lot stronger than any fury of either Old World, AOS, or even 40k.
Plus the mountain den, also work to grant any new outerworld fury with the power that these ones created by the Dark Harbinger.
As more and more furries swoop down to accept one of three of them Laharl finished explaining the reason he spawned them, earlier and with add-ons that they now possess.
These additions were quite impressive and welcomed by the two other Chaos Gods, especially as now they possessed not only a new flying daemon into their ranks, but both high mobility and capable swarming.
Once again their brother create something invaluable and too important for one God to have dominion over, especially since these allows for flying sentinels to watch and scouwer the Warp beyond their realm, so they agreed to make the Isle of Furries a forbidden zone were none of the Gods are able to interfere or corrupt, once all was finished they each returned to their respected realm with hundreds of new flying daemons into their ranks.