This multifaceted prism has two potential effects:
- "Lumos" with this command word, the gem to sheds bright light in a 30-foot radius and dim light for an additional 30 feet. To turn it off, use the "Nox" command
- "Rennervate" hwith this command word, the gem acts like a Raise Dead spell, restoring one creature you touch to life, provided that it has been dead no longer than 10 days. If the creature's soul is both willing and at liberty to rejoin the body, the creature returns to life with 1 hit point.
This spell closes all mortal wounds, neutralizes any poison and cures nonmagical diseases but it does not restore missing body parts or any magical diseases, curses, or similar effects, if these aren't first removed prior to casting the spell, they take effect when the creature returns to life.
Coming back from the dead is an ordeal. The target takes a -4 penalty to all attack rolls, saving throws, and ability checks. Every time the target finishes a long rest, the penalty is reduced by 1 until it disappears.
Once the "Reneverate" command is invoked, the gem becomes a nonmagical jewel worth 250 gp.