Amethyst Fell Stone

Typically used as jewelry, this small crescent-shaped amethyst is a Fell Stone. Created for the sole purpose of causing chaos, wearing a Fell Stone may bring unforeseen consequences. Each stone links to the user's Shadowfell counterpart & borrows from their power to fulfill its user's desires. These inner desires may be fulfilled but slowly become twisted as their counterpart's desires become intertwined with their own. The longer the Fell Stone remains in the user's possession, the stronger & more prolonged the effects of Madness become.

While worn, you gain the following benefits:

•Your Wisdom score increases by 5.
•Your maximum for your Wisdom score increases by 5.
•You have advantage on all Wisdom checks & Wisdom saving throws.

Additionally, once per long rest, the first time you would drop to 0 hit points as a result of taking damage, you instead drop to 5 hit points. 

Notes: Bonus: Wisdom Score, Bonus: Ability Score Maximum, Advantage: Wisdom Ability Checks, Advantage: Wisdom Saving Throws, Buff, Jewelry