I dunno, he's awesome in the intro.. but he still sucks atm in the anime so it's not a valid topic yet. Give it a few more episodes though.. Shana started training him with the sword at the end of the last ep.
Nietono no Shana is the name of the sword. And since it's technically not really a character I don't see how being able to claim it would make much sense. But if it's okay with Syanaide then who am I to spot you?
I cant wait until the full version of BLAZE is released. The first time I heard it it didn't really interest me that much but the more I listened to it the more it grew on me, and now I love it just as much as all the previous openings.
I think Tengu have the rights to claim the katana. In Japan, character voting includes voting for the weapons/armors/clothes/specs/etc. (lol). And I think the katana plays as a major character (?) in the story.
By the way, I could like to join while claiming Khamsin Nbh'w.