Based on the idea that Lankhmar was the inspiration for the City of Maus and some other Blackmoor elements, as suggested I would like to discuss Lankhmar/Newhon elements and see if they are usable in Blackmoor.

Starting with AD&D's Deities & Demigods:


THE THIEVES GUILD
Assuming Lankhmar=Maus, the descriptions of the Thieves Guild could be adapted for that Blackmoorian City. I especially like the idea of the Thieves Guild headquarter as an old mansion with a series of dungeons below it.

THE SLAYERS BROTHERHOOD
Not sure what to do with this bodyguards organization yet, but it is ruled by Assasins. Skandros the Strangler have a similar organization set up in Maus, playing an important role in this city like its equivalent in Lankhmar.

SNOW WITCHES
I will have to read up on those in other sources, but sounds like something that can be tied to Skandahar lands?

FIRE SORCERERS OF THE EAST
These seem like a good match for the Afridhi. Almost too good....

CULT OF THE BEAST
Pretty interesting idea about a cult being able to control animals.

FAFHRD AND THE GREY MOUSER
I like the idea of Scotty Debelfry being the equivalent of the Grey Mouser, although unlike the Mouser, Debelfry eventually managed to gain control of the Thieves Guild.


AARTH
No particular idea for this one. Skelfer?

ASTRAL WOLF
BECMI has Spectral Wolves which are quite similar.

BEHEMOTH
This looks like the original inspiration of the Bulette, even though that was based on a plastic toy.

BIRDS OF TYAA
No particular idea for TYAA yet, but I do like the idea of sinister ravenlike birds. Serving Hella perhaps?

COLD WOMAN
A "white pudding". Perhaps related to Black Puddings?

DEATH
The minor death is a scary figure. Should Blackmoor have something like this? It seems very tied to Nehwon's cosmology.


DEVOURER
This planar merchant reminds me of BECMI's Planar Spiders...

GHOUL, NEHWON
Undead are always welcome

<Various Gods, skipped>

LEVIATHAN
This gigantic squid like creature seems appropriate for the Black SEA or North Sea.


SNOW SERPENT
This is similar to the Frost Serpent, which appeared in AC9 Creature Catalogue for BECMI. I think I would use such creatures in Skandaharian lands.

SPIDER, SALT
These giant swamp dwelling spiders could also be used in the Swamps of Blackmoor.

WATER COBRA
Another useful creature.

TIGER, ICE
Described as a normal tiger, but white. Could be found among the Skandaharians?

-Havard