Board Thread:Show-Related Questions and Answers/@comment-27094327-20151019041819/@comment-25926288-20151020023052

What,really? wrote: Yes on the first two. As for the second...on the one hand, the sword might be enchanted to kill magic-users, which is presumably Arthur's reasoning. On the other hand, attacking someone with their own magic is usually a recipe for disaster. See, e.g.: Severus Snape (Harry Potter), Gellick (Deltora Quest), etc. Yeah, but Arthur should not overestimate himself when he knows that Merlin sees the future and is the most powerful in all the realms.

The Sword was made to conquer darkness and I assume work like a normal sword (well, in actuality, the Sword's design wouldn't make it practical to fight with unless it's all stabby like a needle) and cut off his head.