The Horned Rat
Description
The Great Hunger, the Vermin God, the Destroyer. All are names that have been conjured by in the worship of the Chaos God known principally as the Horned Rat. Said to be a godly refugee from a realm beyond the Milky Way, the texts of the Horned Rat often include mention of the loss of his "true spawn". What is certain is that in the 42nd millennium the Horned Rat has but one desire: to consume the universe, to pollute and defile it all and leave only a lifeless husk behind, weighed down under quadrillions of corpses.
Domains
Entropy, Famine, Impermanence, Fecundity, Exhaustion, Finality, Pests, Malice, Trolling
Avatar
The True Rat is a towering beast with horns to threaten any Bloodthirster, covered for hundreds of feet in matted fur and sores, and with a tail capable of sundering Titans. The Horned Rat answers the call of his followers only once every century, that he may personally consume the most succulent world they can offer him, leaving nothing behind.
Greater Daemons
Verminlords are otherworldly 12-foot tall rat-things boasting powerful psychic abilities running the gamut of potential. The most powerful Verminlords are the source of the claim that the Horned Rat comes from another reality, as they will cheerfully boast to any who are present among the other accomplishments of their lord. To even be near a Verminlord is to invite ruin, as they carry with them a living entropy that pushes all things towards degeneration and filth.
Lesser Daemons
Simulacra are strange, somber creatures that do not fit the typical profile of the Horned Rat. Approximately human-sized walking rat-daemons, Simulacra have a uniform profile of claiming that they are "not real" and "mere reflections" of something else. They entourage mortals to consume and pollute the world around them into perpetual decline. Simulacra typically appear in hordes, and as the Horned Rat's power over an area grows these hordes will grow large enough to leave nothing untouched.
Cults
Cults of the Horned Rat are those of fate and destruction. They focus their justifications on the idea that all shall be dust one day, even the warp itself, and so those alive should consume the universe with wild abandon and allow all to be destroyed in a blaze. Dozens of children are born to the destruction of their mothers, nature is taken from until it falls in upon itself, and eventually only that which the rats could love for remains. Cults often take the form of planetary corporations, apocalypse seekers, and agri-communes.
Mark
The Mark of the Horned Rat is three bars upon one another in a downward facing triangle. Only rarely granted to humans, once a mortal has taken the Mark they have only a short time to attain daemonhood or die as the aura of entropy it grants destroys their own bodies.