There is a seemingly-countless amount of gear that you can find in Baldur's Gate 3, and while most of them will be pretty clear about what their effects are, some of them will be a little bit more vague. In some cases, they may not be clear at all, leaving players to figure it out on their own through trial and error.
Baldur's Gate 3: What Are Devilfoil Masks?
If you're trying to figure out what Devilfoil Masks are in Baldur's Gate 3, this guide can explain it.