Ah, the AD&D 1e Fiend Folio. Amazing cover art. Some amazing content. Other content, not so much. It did, however, teach me the proper meaning of "HD" for monsters ;)
The AD&D 1e Fiend Folio holds a special place in my personal gaming history - it was the first time I ever saw HD defined for monsters. My players never had it so good as when I thought 4+1 HD was 5 HP. Doh!
The quality of the creatures included ranges from awesome to WTF!?!, but you knew that, right? :)
Link to Episode 71 - https://anchor.fm/tavernchat/episodes/Episode-71---Reminiscing-about-the-ADD-1e-Fiend-Folio-e1sn69
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