Expert Dungoneer

Prerequisite: You must come from Blackmoor or the City of Greyhawk, or be a dwur (any type) or deep noniz.

You have extensive experience and knowledge of dungeons and some of the hazards typically found therein. You may add your proficiency bonus to all ability checks made against mechanical traps. Magical traps are unaffected. If you would already add your proficiency score for other reasons, you may add it again.