Fiends

”This creature type basically covers your classic monsters most people would call ”demons”. But, not all fiends are demons as that is its own sub-category of fiend.

That said, creature born from evil planes with horns, wings, spines, or just generally malevolent features all fall under the fiend monster type.

Because of their wide variations and sub-classifications, fiends share only a few traits with each other. Even within their sub-types do fiends vary greatly from each other with some being snake-like or mounds of flesh or even partially frozen.
But, as with all creature types, fiends do share some similar features, traits, and stats with each other.” – roleplayerspite.com