Periapt of Proof against Poison

D&D 2014 item: Periapt of Proof against Poison. Source: Dungeon Master's Guide (2014). type Wondrous Item, Rare rarity This delicate silver chain has a brilliant-cut black gem pendant. While you wear it, poisons have no effect on you. You are immune to the poisoned condition and have immunity to poison damage. Wondrous Item Rare

Source: Dungeon Master's Guide (2014), p. 184 - Licenses and attribution