Cross-posting from a thread in the cleric combat folders. Apparently these things are immune to holy but that doesn't show up in the appraise. I tried multiple capped spells against these things (with 100 int/wis/disc) and all my spelled got swatted down. Either the appraisal is borked or the way they handle the magics is.

Yes, thanks! Was just trying to help someone else out, didn't know they BUGged it too!