Wow, that's a generic title! There are tons of monsters in D&D that fit the Halloween season.
But I'm going way back for this one.
The "pumpkin-head" bugbear.
I don't remember if it was someone's blog, or maybe one of the D&D themed videos I was watching on YouTube, but recently someone was complaining about the overuse of bugbears in modules. Well, slap a pumpkin head on them and I think there's less reason to complain about them appearing so often.
Ratpack – Shattered Star Book 2, Session 33
4 minutes ago