I'm going to temporarily transform my
Wakestone Gargoyle into a Gargoyle Lamia creature, and make some tests.
EDIT: It works now, it's just that the Functions file should have .lol extension and not .lua. See the edits on my previous posts on this page. And apologies to merdok for giving him wrong information... I was really convinced about that until I opened my DotP2014 mods!

By the way, if someone has already checked all the creature types that are missing (other than Lamia), please write them here, I'll make "universal" .txt, .xml and .lol files that cover them all, so that you can add them to your personal mods.