an obsidian plummet

Object 'obsidian plummet' is type weapon, material stone.
Extra flags: glow hum nodrop nonmetal burnproof.
Weight is 3, value is 3, level is 50.
Weapon type is exotic.
Damage is 5d10 (average 27).
Affects damroll by 2.
Affects hitroll by 2.
Rare item.