Die of luck, unfortune and die

Picture from colorbox.

"The Die" is in a beautifully crafted box with velvet inside. The die looks to be made of black bone or similar material. The pips are small blue diamonds.

If the die is touched with bare skin it will get stuck until it is rolled. When die is rolled ask player a number between 1-6 and ask him to roll one d6.

If the d6 result is exactly the same player said character dies.
If the roll result is higher next d6 die rolls will automatically success (or give highest possible result in damage, with potions etc.)
If the roll result is lower next d6 die rolls will automatically fail (potions don't heal etc.).

The die is worth 1000gp (sp if Lotfp) if right buyer is found.