Wine of the River

Wondrous item (wine), uncommon

Kept in ebon-colored bottles, this sweet, aged wine tastes of citrus and a delicate flower that grows only on at the edge of the elvish river. The bottle contains four servings. A creature who drinks a serving of this wine may breathe both air and water for 1 hour. Additionally, the imbiber is filled with knowledge about the elvish forest and gains advantage on Intelligence (history) checks about the forest for 1 hour. Creatures who drink more than one serving within 24 hours must make a successful DC 14 Constitution saving throw or become incapacitated for 1d4 hours.