Heart of the Mountain wondrous, very rare (requires attunement by a spellcaster or dwarf)

This item is visibly sculpted to look like a humanoid heart. It has a large ruby depressed into its left side. When you attune to this heart a light within the ruby begins softly pulsating in time with your own pulse, and a soft thrumming can be heard coming from within the stone.

While attuned to this item you must fail 5 death saving throws to die instead of 3.

Additionally, once per day as an action you can choose to cast either Stoneskin or Investiture of Stone on yourself, ignoring concentration. If you are not a spellcaster you use your Constitution modifier as your spellcasting ability for this effect. If you choose Investiture of Stone you gain 1 level of exhaustion as the spell ends.

Curse. While attuned with this item you are vulnerable to thunder damage.

If you un-attune with this item or it is destroyed you immediately drop to 0 hit points and begin making death saving throws. Additionally, you gain 1d4 levels of exhaustion that lasts for 10 days and can only be removed by Greater Restoration.

Type: Wondrous, very rare (major)
School: Transmutation
Cost: 50,000 gp38,000 sp
Item Created: 2016-11-29
Item #: 112