Agatha's Enchanted Vial

This vial of enchanted, unbreakable glass reeks of transmutation magic.  An identify spell will indicate it's magic nature, but not the effect of the fluid contained within.  As a bonus action, the bearer may shake the vial, mixing the contents and creating a new potion.  The DM rolls 1d12 in secret and consults the table below to determine what the new brew is:

1.  Philter of Love
2.  Potion of Animal Friendship (if consumed by a creature of 3 or less INT, it acts as an an Awaken spell instead)
3.  Potion of Diminution
4.  Potion of Fire Breath
5.  Potion of Invisibility
6.  Potion of Invulnerability
7.  Potion of Longevity
8.  Potion of Maximum Power
9.  Potion of Vitality
10.  Potion of Superior Healing
11.  Potion of Poison
12.  Potion of Intoxication

The first time a new potion is created, the potential drinker will have no way of determining the effects.  Careful observation of the a potion and it's results will allow the drinker to know the result of the die roll in advance should the same potion result.  

If the same result occurs twice in a row, the result is plain water, and the vial loses all of it's magical properties.