User blog comment:Schiffy/BG9: Man, Machine, or Something Else Entirely?/@comment-1904799-20130918223414/@comment-1387259-20130918224315

Alot of that does indeed seem like a plausible theory, but my only objection is that his "actual body is too weak for combat" being a possibility. Yhwach doesn't seem like the kind of man to pick someone who can't fight on their own accord to be in a group as "elite" as the Stern Ritter.