"…and the goat had a notable horn between his eyes"

Animals are the most common monster in your setting.

Yes, your druid can talk to them, but what do they say? Oh I want to pull your sled, hippie? No.

Animals are political--flies hate toads and frogs and toads and frogs hate my Monday group, because they killed a Slaad, one of their gods, which in turn hates the Chasme, or demon-fly.

…and in Carcosa it's even worse.

Point being there is, even before the new Monster Manual arrives, a great deal of nascent animontrosity nascent in your world. Dormant hates, waiting for a moment to bray and bite. Yes, your honey badger Animal Companion will help you, but if you tell it to kill snakes--it might not stop.

Which brings us to the goat. We imagine animals are us and imagine their inner world is the world we'd have had we that face.

By and large, our ancestors seem to have looked at goats and seen a sharp-featured male face, whose beard made him old, whose hollowed cheeks spoke not of softeing age but of having been harrowed, shriven and shrivelled and whose side-slit half-open eyes made him sly and drunk.

We aren't complete idiots, though--and once dealt with domestic animals daily--so much of what we decide is based on what they actually do. So we can add in that this particular senior citizen is omnivorous, tenacious, and difficult.

At some point, most of Europe decided this was the worst kind of man you could be. He, like, the serpent, had been too far and taken in too much.

Might've been the horns

People say goats are lustful, serving Baphomet, a duke beneath Demogorgon, but then, people say a lot of things.

What is known for certain is that the goat is contemptuous of the sheep, which obeys, that two goats--Toothsnarler and Toothgrinder--draw the chariot of Thor, that they give milk, meat, cheese and hide, that sin may be invested in a special goat to purge a community of it, that they possess a two-breasted udder, that they whisper lewdness into the ears of saints, and that the Cathedrals of Tittivila used to be built inside the bodies of massive, 8-legged black goats.

While it is not true that goats may eat anything, they have been known to ruminate on a wide variety of topics. Those casting Speak With Animals and consulting a goat on any topic will likely be confronted with a well-developed (if not always well-conceived) treatment of the subject.

Beastmen are chosen of Demogorgon, and possess goat heads, but they lack the gimlet calm of their goat parents. It is said among goats that two-legged blood makes beastmen lustful.

War-goats have 2+2 hit dice and attack as wardogs, save they do +2 damage on a charge and are much harder to train. If you ask a wardog to fetch something it might work, your wargoat will probably eat it.

Halflings, dwarves and both tribal and witchwood goblins are known to ride wargoats, and it is claimed gnomes have a great affinity with them, but no-one gives a fuck because they're gnomes.

The goat's greatest foe is, of course, the troll. Trolls lurk beneath bridges, for they are places which connect, by civilized means, loci which Demogorgon--in his wisdom--preferred to conceive separately.

Typically, trolls will menace each goat that passes a bridge (to quote the Monster Manual) "unceasingly", until gored by an unusually large, pugnacious, skilled or lucky goat. Such a goat (known as an Escape Goat) then acquires the trolls' regeneration abilities. If, like Toothsnarler and Toothgrinder, they are slaughtered by their master and eaten in a goat's head soup, they will return healthy the next morning.

Another variety is the Night Goat, which is a kind of crime-solving goat. It has no special abilities, but murmurs in the darkness.

As the Icelandic Goat nears extinction, it requests your help.
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