Black Opal
Black opal is a greenish type of opal with black mottling and gold flecks, usually found in ancient hot springs or their dry remnants. The Faerûn phrase “black as a black opal” means, effectively, not very black (or evil) at all. It is used to describe good-hearted rogues and similar individuals who would be embarrassed by praise.
A black opal included in any wand with a spell that has the force descriptor increases the save DC against the wand’s effect by +1. If no saving throw applies or is allowed, it instead adds +1 to the effective caster level of the effect.
Material Cost: 1,000 gp.