Philosopher's Stone

The Philosopher's Stone is an Accessory dropped by the Mimic. It reduces the 1 minute Potion Sickness debuff cooldown time by 15 seconds, so that the cooldown is only 45 seconds. Essentially this means that most regenerative Potions can be used more often.

Trivia

 * The philosopher's stone is a legendary alchemical substance, typically believed to turn certain metals into gold and create an elixir that provided eternal life.