Raven Crowking
First Post
If we include the Tome of Horrors, then there is a 3e Dire Corby.
Thouls appear in Moldvay Basic, but were never published for AD&D; I don't recall if they were mentioned in AD&D (perhaps under Yeenoghu?) or mentioned/published for 2e/3e/4e, but they're relatively less-known monsters in general.
Thouls are in the 2nd Ed. Mystara MC. It seems like they were in a 3rd Ed. Dragon, but I can't find a reference for it.
Sweet! Now I know. (And knowing is half the battle.)You memory serves you well. While the dire corby is indeed mentioned in the Homeland/Exile/Sojourn trilogy, it never made the leap to a 2nd Edition monster stat block.
I know the answer's just gonna be "Mystara Monstrous Compendium" but what about one-off monsters from the Gazeteers or the Princess Ark series? I remember GAZ3 had Mandragora and some sort of blood-drinking plant, and they had a vampire variant called Nosferatu (which probably isn't unique enough to count). And Princess Ark had the Night Dragons and Cestian Gobblers - don't remember what all was introduced in later episodes.
For that matter, the Creature Catalog had a whole bunch of weird ones taken from modules that seem like they might not have been converted. Like the Oards (time-travelling humanoids from the future), Cryons (bat-like humanoids on skates), Wyrds (elven wights that throw orbs), Decapus (tree-dwelling octopus), and I'm sure I can think of more. Wish I still had that.