the only one i know of is the life taker altho i thought it was called the soul taker myself =4 with a 15% chance to drain levels upone hit. I have never gotten it before but I know you get it from atremis enteri the assasin. Its his trademark weapon. ud know about it if you have read alot of salvatore books
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"I was born of darkness. My fathers eyes closed before mine opened. I am not of this world or the other, and I have the right to be what I am..."