Editing Hive Fleet Nidhoggr (section)

==Biomorphs peculiar to the Nidhoggr==
Many strange creatures are found only in this peculiar hive fleet.

===Balor-class Hive Tyrant===
[[File:nid2.png|125px|thumb|A demon can hide in just a shadow]]
A Hive Tyrant of the Hive Fleet Nidhoggr. It was the first true commander-organism of its fleet and led the fall of Yggdrasil and the first crusades through the dark cosmo. Far larger than any other organism of its type, the Tyrant incorporated many strange adaptations in its iterations, from massive magma cannons to piercing chitin spears; the one common denominator and the artificers of its dark fame were a peculiar type of monstrous bonesword and lash whip called "The Devil's Implements" that burned away the flesh of the victims and bombarded their pain receptors to the point of bursting. Little by little, this creature's appearances grew rarer, until it became something of a myth, the shadow of a demon lingering in the scorched earths of countless systems, out-shadowed only by an even darker form.


===Surtur-class Swarmlord===
[[File:Surtur-class_Swarmlord.jpeg|300px|thumb|The modern version of this hellish beast]]
The gradual disappearance of the Balor-class Tyrant wasn't an act of mercy, for with every new battle, the Nidhoggr Norn Queen, the Molten Empress, tested the limits of organisms it created and gradually crafted the most fearsome of them all, a magnum opus of fire and death with which to burn the sky and shatter the ground. And so, on a remote and fortified planet of the Space Wolves, the Surtur-class Swarmlord was unleashed. In a matter of three days, each and every fortress on the planet fell, the newly born leader of the Swallowing Flame led charge after charge, commanding its legions of fire and ash with brutal precision. On the last day, Anthra, captain of the last surviving haven of the planet, fought the beast in direct combat; despite his agility, he was no match for the fiery mountain that opposed him, and for an hour he barely managed to hold his own, until a blow from its massive sabers cut his right arm, disarming him. But before he could be finished off, he took the Swarmlord by surprise and blasted one of its own appendages off with a shot from a melta pistol. At last, the beast had lowered its guard, but it was still learning, that wasn't but a test to understand its capabilities. It mauled the captain alive, under the watch of his brothers and under the last screams of the fallen hero, so too fell the last bastion of Charan.

Centuries later, the Surtur-class Swarmlord has only gotten more intelligent and brutal. In a macabre display of intelligence from a seemingly soulless abomination, before consuming the prey it always slices their limbs off, apparently enjoying their struggles before engulfing them in its flames.


===Linnorm===
A massive Trygon wreathed in flame, this particular bioform is a unique individual that consumes inorganic matter and uses it as fuel to power its rampages. First spotted at the vanguard of a Nidhoggr assault on an imperial world, the Linnorm burnt through and under groups of vehicles, melting their undersides and immobilizing them before erupting in a shower of lava.

Despite its appearances not being very different from other normal Trygons and Mawlocs, the inner working of this beast are indeed quite peculiar; while lacking its cousins' ability to harness electrostatic energy and fire it at will, the Linnorm is capable of utilizing its biostatic rattle to sense vulnerable points in the crust and even cause localized earthquakes through the pulses release by it underground. The dragon cannon situated in its mouth, in addition, can melt through armored bunkers and functions based on the creature's innate thermal reserve deep in its body, which reaches temperatures abnormal even for the standards of the fleet.

While other creatures of the Nidhoggr are masters of destruction and bloodshed, the Linnorm's role is much more subtle; its targets are the backfield supports, supply units, or even those unfortunate souls that might try to escape the flames. Where there's ground, one is always in potential danger.


===Suam'O===
[[File:Suam'O.jpeg|300px|thumb|A brutish weapon of destruction]]
Called "Commander of Flame" in the Tau language, this tyranid first appeared on a heavily defended T'au world. The Tau had taken many painstaking weeks to purge the Nidhoggr forces from their planet, utilising the heavy Riptide battle suits to clear the monstrous creatures from afar. Once every tyranid bioform had been driven back and destroyed, a single carnifex fell from the sky and ran directly at the weakest point in the enemy defence. The creature used a grappling hook-like tentacle to grab the closest Riptide and render its range advantage moot, then, it crushed its hull with the giant claws and burned the insides with its flames. The confusion and chaos it caused were enough for the hive fleet to reorganize and drive another wave of armored biomorphs, all concentrated in the spot sieged by Suam'O. After more fighting, the planet was finally consumed; though at heavy losses, a new creature had been tested by the hive mind, one that proved its effectiveness well enough to deserve further use.

Suam'O shows remarkable intelligence for a carnifex, being fit for the highly autonomous hive tendril. It is believed that the individual was built by the Hive Mind to destroy the advantage the T'au have in range and quickly assess the enemy's weaknesses without giving them time to react.


===Garmriex===
A striking example of the genetic divergence that characterizes the fleet's creatures, Garmriexes can be considered cousins of the common tyranic Broodlord biomorph. With the Nidhoggr's impossibility of creating broods of lesser organisms, this iteration of the creatures has been modified to discard its reproductive capabilities in favor of a faster build and additional sensory organs that aid the Garmriex in searching for hiding prey in dark corridors and closed spaces. Prediliging ambushes, this organism digs under rubble and rock and waits for any sign of non-tyranid organic lifeforms in the vicinity; when a wounded soldier or unfortunate civilian approaches the beast's domain, it springs from the ground and savagely mawles them before retreating back, the calls for help and smell of burnt flesh sure to drawn closer more prey.

It can be debated that the loss of potential cults born from the Stealer genes can hinder the chances of a world's consumption but given the seeding tactics and crust-engineering capabilities possessed by certain other organisms of this fleet, it's clear to there is no such need in the first place. Though the prospect of someone devoting themselves to the Devouring Flame is a scary one indeed.


===Ignis-class Pyrovores===
While most Hive Fleets are content with merely leaving the Pyrovore to consume at its own leisure, its fire cannon being too inefficient for combat, the Hive Fleet Nidhoggr would begin adapting them to become more effective after a nearly-disastrous battle against the hordes of Hive Fleet Leviathan on the world and moons of Meruno. The result was the Ignis-class Pyrovore, a breed of creatures that harnessed the igneous power of magma to become capable of dissolving nearly anything with its magmaspurt cannon. Although the brood is still relatively new, prospects from what few combats saw these beasts used have proven to be favorable.


===Wyrms===
Rippers are a crucial part of a hive fleet and contribute the most to the consumption of a planet's biomass. Unfortunately, due to the nature of the hive fleet, such small and feeble creatures would quickly die of auto-combustion and so the Molten Empress designed the Wyrms to fill in their ecological roles. These long worm creatures tunnel through the earth in search of pockets of magma and various other mineral materials the tendril needs and swallow them as if they were water or meat. This process of moving through the soil slowly destabilizes the ground, allowing for the terraforming of the planet to better suit the need of the Nidhoggr; hills crack open, lava flows in rivers, and geysers of underground gasses poison the wildlife. But their work doesn't end there, other than swallowing various land-dwelling creatures, their physique built for mantle travel makes them suited to explore the deep oceans and begin their conversion into boiling wastes.


===[[Magma Corer]]===
A distant relative of the Carnifex, Magma Corers have been sighted through many different worlds sieged by various different Hive Fleets; their origin, however, comes from the Nidhoggr. These elusive behemoths rarely emerge on the surface of a planet and so have been hardly studied, the different accounts of their presence usually coming from the effects they have on a planet's lithosphere. Bulking figures, shells hard as diamonds, and sporting enormous shoveling claws, the objective of the Magma Corers is one, to dig deep into a planet's crust as far as they can go and then proceed to detonate in sync to rupture the earth and awaken dormant fault lines. The details of this whole process are still unknown, it is believed the creature secretes an obsidian-like substance than hardens on the sides of the tunnel to keep it from collapsing and that it is outfitted with special synaptic receptors that connect it to the Hive Mind even under tens of kilometers below the surface. Once the desired altitude has been reached, an unknown reaction takes place and the plan is set into motion; in areas where magma is sufficiently basic, the low-viscosity lava will typically erupt releasing huge quantities of dissolved gases, meanwhile, in areas where the lava is acidic and viscous, explosive eruptions and pyroclastic flows have occurred. This results in significant loss of life to all creatures within miles of the occurrence, even other Tyranids, which explains why this type of biomorph is more often employed by the heat-resistant Nidhoggr than any other fleet. In addition, the detonation of Magma Corer from the Nidhoggr Hive Fleet seems to be much more potent in nature, probably due to the different internal biology and conditions.