I might also be doing something in Adventurecraft, mainly via trying to make megabeast-tier materials less common by making semimegabeasts use the tier-2 body materials. This also means I'd need to add another source of megabeast-tier chitin and shell, because mi-gos and gargoyles are semi-megabeasts.
I do have an idea though. As well as some possiblities for making a lesser tier of monsters, using the NIGHT_CREATURE_HUNTER token. Also? There might be sandworms.