The Cursed Coronet issue was an easy fix- some notetags snuck in. I'm investigating the Vim Crystal/Earth Affin/Nature's Boon thing now- but it's probably similar to the Lucky Lass issue. (I may potentially buff Nature's Boon to affect the entire party and have two turns anyway.)
As for the treasure detector idea... hmmmm. I'd really have to go back and go over a lot, but it would make for an interesting item! Maybe I'll make it a sidequest reward later.