Crossovers That Should Not Be 27 - three sets of three rules of three... stinkers

[Norgarth]

... Farslayer, that's one of Zelany(?)'s 12 Swords, right?

IIRC, you choose a target, throw it and it flys off and kills them. It does +not_ come back , so now somebody around your target has the sword.

That would lead to an awful large death toll fairly quickly in Westeros...