Bront
The man with the probe
So, Arcane creatures = Creatures created by arcane means (some constructs+undead), as well as those either greatly influenced by arcane terrain or who's infulence helps create arcane terrain, such as some Fey, Aberations, Magical Beasts, or humanoids.
Seems a fair description.
Edit: Revised
Seems a fair description.
Edit: Revised
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