This lidded 2-pint tankard can be filled normally and used for drinking, or can be filled magically. The first time that the mug is magically filled with a liquid other than beer, the contents are colorless and odorless, and the user must make a DC15 Arcana check to identify the contents or conduct an experiment to determine the liquid. Once the identity of a given liquid has been identified, it takes on the properties of the liquid and is identifiable by the wielder on subsequent fillings. It cannot be unintentionally spilled unless dropped.

The Aberhaven Brewmaster's Tankard has 3 charges. The wielder can take an action and expend one charge to magically fill the mug. The holder rolls 1d8 to determine the contents.
On a roll of 1, the tankard fills with a random liquid from the table below. On a roll of 2-7, the tankard fills with normal beer. On a roll of 8, the wielder can choose whether it feels with beer or a chosen liquid which has already been identified as previously described from the table below. Once the tankard is emptied, it is magically cleaned and contains no residue of its previous contents. The tankard regains all of it's charges each day at sunset.

1 - Urine
2 - Acid
3 - Oil of Slipperyness
4 - Potion of Waterbreathing
5 - Philter of Love
6 - Potion of Fire Breath
7 - Potion of Resistance
8 - Potion of Clairvoyance