Yggdrasil's Spirit appears to be an old, beaten-up wooden mug. It was made from the Yggdrasil, a great magic tree in the Verdant Sanctuary. Paladins of Liira have blessed the mug with an enchantment against poisons, except for alcohol. 

Once per day, you may sing a drinking shanty over the cup and it will fill with a dark ale from the Verdant Sanctuary. 

At any time, you may fill the mug with any liquid, and if the liquid has any poisons in it besides alcohol, it will swirl with colors before turning clear. This clear liquid is safe to drink.

At any time, someone may drink liquid from within the cup (assuming it is filled with a liquid.) If drunk from, the drinker has advantage on their next save against the poisoned condition.

Notes: Creation, Healing, Container