Necklace of Soul Wringer (3.5e Equipment)
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One wizard, one vampire, this princess of horror has declared a war against a continent. All its kingdoms, and all its churches made an alliance to defeat her. They managed to defeat her, but their loss was a third of all living in it. And she escaped... One of vampire goddess Shilah's special artifact that she has forged in the time between her life of humanity and her life of deity, this necklace has been known to be a mystical artifact that traps a soul of a creature and extract magical powers from it.
This necklace is composed of a black chain with a pendant shaped like a skull, holding in its mouth a red diamond in the shape of a crescent. It seems to be made out of some sort of an alloy containing adamantine and is almost indestructible.
When the wearer of this artifact slays a creature within reach of his touch, he can attempt to capture the soul of the slain and contain it in the pendant (must succeed on a Use Magic Device check with DC equal to the HD of the creature, as a swift action). A pendant can hold only one soul at a time, and while the soul is in the pendant it cannot be returned through clone, raise dead, reincarnation, resurrection, true resurrection, or even a miracle or a wish.
While a soul is captured, the wearer is able to extract the power of the soul and use them as his own. The soul records the ability score of its original body. The wearer can subtract some amount of the ability score from one ability and add it to his own as a magical bonus, by succeeding on a Use Magic Device check equal to 20 + the number of scores he wishes to extract. The total bonus he wishes to extract at once can be for one ability only per round, and cannot be more than half of the original score of the trapped soul. This ability lasts only for 5 minutes, and the bonus dissipates after that duration, and the soul does not regain the lost scores whether the wearer wishes to or not. If any one ability of the trapped soul falls to 0, the soul is destroyed and is lost forever.
If the wearer's HP is reduced to 0, he is not knocked unconscious as usual, but instead has his soul absorbed into the pendant, instantly slaying him. The only way a soul in the pendant is released is by the death of the wearer, whose soul replaces the one currently in it, or by an intervention by a being having divine ranks. If such happens, the soul that was in it before is now expelled and will go to where it was supposed to go.