Oh, yes, his blade negates magic:
http://postimg.org/image/v5e1mk3rn/
But if the sword/armour was...semi-magic (not sure how that is?) then it would only partially work.
With regards to her armour - tricky. On the one hand, I've been sold on the idea that her sword negates ALL magic (I've seen BW's BZ with her). And now, apparently, her own magical armour is proof against it...does that mean her eldritch armour is > Cytorrak, for example?