spell jammin', across the universe
Necklace of adaption
This necklace is made from woven strips of leather, seemingly from type of aquatic creature. Closer inspection shows it to be Naga leather. Expertly woven into the leather is a single piece of multi-faceted black quartz, about the inch in diameter. The magic of the necklace wraps the wearer in a shell of fresh air, making him immune to all harmful vapors and gases (such as cloudkill and stinking cloud effects, as well as inhaled poisons) and allowing him to breathe, even underwater or in a vacuum.