This item has 4 charges, and reagins 1d4 charges daily at dawn. As an action, you can speak the cup's command word, and the cup fills with coffee. The coffee is hot, but not hot enough to burn the imbiber's tongue or lips. Every time coffee is conjured by this cup, it has a different flavour and different caffeine content. When you drink the coffee created by this cup, roll a d20. On a roll of a 20, you gain 25 temporary hit points that last for the next 8 hours, and you lose 1 point of exhaustion.
Notes: Bonus: Temporary Hit Points, Healing, Buff