These barbed chains are forged of reddish metal.

Each time you don barbs of retribution, they deal 1 point of damage to you. This damage can’t be healed as long as you wear these barbed hand wrappings.
When you activate barbs of retribution and sacrifice a sorcerer spell slot of 2nd level or higher, you can force an enemy within 30 feet to reroll a saving throw that just succeeded, with a penalty equal to half the level of the spell sacrificed.
This effect manifests as a stream of arcane energy flowing from your hands toward the target.
If you have the dragonblood subtype (see Races of the Dragon or Dragon Magic), you can instead sacrifice your own hit points when activating the barbs. You must sacrifice at least 5 hit points, and the rerolled save is made with a penalty equal to –1 per 5 hit points expended (maximum –5 for 25 hit points spent).
This effect manifests as a stream of fiery blood flowing from your hands toward the target.
Barbs of retribution function once per day.

Prerequisites: Craft Wondrous Item, bestow curse, sorcerer or dragonblood subtype, possession of a piece of the set.
Cost to Create: 2,000 gp (plus 500 gp for base item), 160 XP, 4 days.