Editing Hive Fleet Nidhoggr (section)

===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.