^ Not really, from what you say, it was a valid assumption. It may be that Claymores have an inherent protection against being "possessed" by the Yoma; after the Claymores themselves are already half-Yoma; maybe that prevents them from being taken over by Yoma. But, that's just an assumption I'm making. Watch on, I guess.
@
Defiled one: Thanks, but I didn't need to know that. -_- Spoiler tag it please.