Lich's Gambit (Sanguis Silica) is a beautiful, if macabre stone. It is said to be tinged with blood and only grows on Liches in their places of power, a rare find indeed!
A band of adventurers discovered and cleared out old Agiburn Keep and informed the Master that there had been a lich inside. He surveyed the castle, and took note of a crystalline growth around the old necromancer’s body. Esimar theorizes that the excess dark magic used to keep the spirit in their bones is a catalyst for the crystal's matrix.
Given the dangerous nature of these stones, they are kept in the "VAULT" as a safety precaution.
Title: Lich's Gambit
Casting Time: 10 minutes
Components: VSM (glass vial, caster's blood)
Duration: 1 hour
Ritually place blood in a small glass vial (causing 1d4 points of damage during casting). For the next hour, if your hit points reach zero the spell effect goes into effect. On a successful will save the caster is healed for 1d4 + your spellcasting ability modifier, if they fail the will save the spell fails.
If they do no use the effect within 1 hour the spell fades.
At Higher Levels: 1d4 in additional healing.