Cauldron 15 is a may-follow card game based on trick-taking and trump cards. Compete to see who can brew the strongest potion The number of the cards played each trick are added up in order, and the cards obtained in the trick change depending on whether the total is less than, exceeds, or is exactly the capacity of the cauldron. The cards you get from each trick also count as your points for all 3 rounds. This total score must not exceed 15. Take care of the capacity of the cauldron and try to win tricks to get closer to 15. To make better medicine, the amount of material you put in the kettle is important. If you add too much, the pot will overflow and you will end up with unstable material. However, in some cases, such unstable materials may be necessary. Which witch can use the cauldron to create the best medicine?