Alicornutopia

Pun intended.
Yes, that's the bit I was asking about.

So what's up with the darkspawn disintegrator? I can't imagine they have darkspawn in Treasury.

Also disintegrates the inedible portions of giant spiders!

It disintegrates things and substances of the category "vermin", in which we counted darkspawn. It is polite enough to leave the food parts if you are trying to eat a vermin.

Is it polite enough to leave other parts if you want, such as if you want to keep a pet rat?

I think rats actually just don't count. It might leave alone your pet tarantula. It's pretty polite.

If a portalsnake eats an Arabek god's manifested form, what happens?

It goes somewhere, I believe.

Just the manifested form, not the whole god?

When Tialle's Demon got mirrorsnaked the dragon didn't come with.