The Naco

We know from different WOBs that Nazh way sent by Khriss among the Stonewards and that Taln's honorblade was stolen by someone. So my theory is that in order to infiltrate Nazh stole Taln's honorblade, gaining Stonewards' abilities. I see some problems with this (why infiltrate if you already have an honorblade?. How would he hide the honorblade while using it?) I don't know, probably this isn't true. But the fact that Nazh infiltrates in the Stonewards' when the honorblades with their same powers have disappeared seems to mean something. What do you think? (BTW sorry if I have made some grammatical mistake, I'm not a native English speaker)