This silver or gold chain resembles a medallion. The wearer can ignore all sorts of gases that affect creatures through respiration. He can also breathe underwater or even exist in airless space for up to seven days. After seven days, the amulet ceases to function until brought back into an atmosphere for 12 hours.
The wearer can still smell but harmful effects of smell are diluted.
Spell casters can cast spells underwater while wearing the necklace. |