Vial of Noxious Brew

This small glass vial is filled with a bubbling, greenish liquid that emits a potent, sulfurous smell. When uncorked and poured, the Noxious Brew can be used as a potion that grants the drinker advantage on saving throws against poison and the poisoned condition for 1 hour. However, the potent brew also curses the user with a foul odor, making them disadvantage on Charisma checks due to the lingering stench and causing creatures within 10 feet to make a DC 12 Constitution saving throw or be poisoned for the duration. The brew was created by the cultist mage using rare toxic herbs harvested from the lairs of poison dragons, mixing their essence with foul earth and dragon blood, resulting in a potent but foul elixir that reflects both the potency of the cult's practices and the malodorous nature of their rituals.