Quickleaf
Legend
Huh, thematically the lemure image reflecting mirrors wouldn't mix well with the pit fiend major image. Or did you have something else in mind?As far as I can tell, it's just "hey a bone devil has major image on its spell list, let's see what happens." With a little work you could get the PCs expecting a pit fiend (this is a dimensional prison for creatures that crossed the pit fiend Bazgorca, and they might spy him through observing spheres in one of the torture rooms). But the adventure doesn't do that, it's a CR 9 encounter for levels 7-9. It's set in a bit of an illusion-friendly room, lined with magic mirrors that mock the bone devil by reflecting his image as a lemure, and give him a regenerating mirror image effect. But if the author knows the interaction rules, he probably intended it to be more of a tiny speed bump and less of a major deception. Goodman Games usually playtests and knows the rules, so they probably knew it wasn't going to be an effective tactic.
Btw, when quoting it's usually helpful to leave the username in there, since ENWorlders get notified when they're quoted.
