Colin McComb responds regarding Zzyczesiya
defintely amusing at least.

apparently, i will also have to bother Ray Vallese for his opinion on this one as well!
very unofficial, but if anyone wants to make use of it, they are free to do so.
"I hate to disappoint, but I'm pretty sure that was one of Ray's additions. What you reference was most definitely a throwaway line, but I'll be happy to make something up for you on the spot:
Zzyczesiya, Demon Lord of Confused and Malevolent Ignorance
Abode: A murky land, the features of which defy mapping. Cartographers have noted its tendency to shift the moment they set pen to paper, and while enemies of Zzyczesiya have attempted to overthrow the Demon Thing with armies of map-makers, the result is always tragedy (for the mappers, that is). Lava pools appear, mountains grow where none existed before - or worse, they disappear. The sky of the land is an inky gray, the entirety of which is a portal to neighboring layers (which ones? YOU DECIDE). Creatures fall in and out of it all the time, some on purpose. Most are those who have lost their way through pride or sheer dumb misfortune.
Appearance: Think of a cloak of darkest shifting shadows. Add the fluttering of bats and the incompetent bumbling of moths. Then add an indeterminate numbers of fangs and stingers. Remove a voracious appetite (Zzyczesiya is voracious for nothing, but most especially not for knowledge) but include three wrathful eyes that burn green from everchanging positions inside that penumbra.
Portfolio: Those who resist knowledge in all its forms, those who seek to stamp out learning in an attempt to return to a better time, those who insist on a single worldview and hate dissent - these are all the servants of Zzyczesiya.
Zzyczesiya's powers are amorphous, and the Demon Lord (or is it Lady?) has likely forgotten their full extent, or has otherwise never bothered to learn how far its powers extend. It takes part in the political games of the tanar'ri lords only sparingly, because its rivals outclass it in intelligence and ambition and it resents them for this. Still, each of them seeks to draw Zzyczesiya in to temporary alliances, for the Demon Thing wields incredible brute power. Those who manage to ally themselves with Zzyczesiya are occasionally fortunate enough to achieve their ends - many of them are not, for the Thing directs ill will and ill fortune indiscriminately.
I hope that's a vague enough description that you're able to do something menacing with it. Now you've got me thinking more about it. DAMN YOU, BOZ, DAMN YOU.
-Colin"