Infiniti2000 said:Easily only so far as someone having detect magic running for three rounds. Now, arcane sight is another matter. I suggest using magic aura to hide the gem though. There should be a magic aura spell for creatures, so maybe you could consider making one. Maybe 3rd level?
Infiniti2000 said:That's why I suggested magic aura. That would hide them.
As for permanent spells, a handful of nasty dispels of various flavors would eliminate a lot of that. Targeted (or even area) dispel magic/greater dispel magic, reaving dispel, disjunction, etc. Use a BBEG contemplative with the inquisition domain.