So basically, when encountering angels and such in explore in October, some of them have the plural name instead of the singular name.
Example:
A Cherubim in its Lamassu form takes little effort to defeat legions of small demonic creatures.

This would be fine, except for one thing: cherubim is the plural form of the word 'cherub'. It would be an easy fix, and I see no reason not to fix this. :)