Nuitari's Deliverance

If you die while wearing this obsidian amulet
a willing creature within 30ft may roll
3d6+ plus their Constitution modifier and
subtract the results from their current hit points.
You regain hit points equal to the result.
Once the obsidian is used, it turns to
dust and is destroyed.
Wisdom is a throne, a seat of power
that only the strong are worthy to occupy