When you drink this potion, for 4 hours:

• regain 1d10 spell slots (e.g. if you rolled a 6, you could take 3 2nd level slots, or 1 4th level and a 2nd level etc.)
• gain 1d8 temporary hit points
• gain advantage on either Wisdom, Intelligence, or Charisma checks (choose 1)

At the end of this effect, the player must make a DC17 Constitution saving throw, or take a level of exhaustion.