Its based on the (and co-written by) Micheal Moorcock's series of Novels "Elric" and the "Black Blade" refers to the setient sword "Stormbringer" a sorcerous blade that is adicted to souls and kills out of lust against its "master's" wishes (ie. elric) but teh co-dependence leads Elric to wonder if he is a servent of the blade.
Its based on the (and co-written by) Micheal Moorcock's series of Novels "Elric" and the "Black Blade" refers to the setient sword "Stormbringer" a sorcerous blade that is adicted to souls and kills out of lust against its "master's" wishes (ie. elric) but teh co-dependence leads Elric to wonder if he is a servent of the blade.
btw. Elric is a follower of the lords of Chaos