Talk:Irregular/@comment-6122870-20130327213755/@comment-4736714-20130327221619

Note the two sources I cited in the section on the article discussing that, where Zahard is at least implicitly lumped into the group of Irregulars. Ashul Edwaru and Yu Han Sung both say things like "Irregulars, such as Urek Mazino or Zahard..." This isn't 100% certain (it's only implied, and it's possible Irregular means different things in different contexts, or that it's controversal in-setting), but it's the best we have to go on.

As far as immortality goes, SIU explicitly says, in the blog post for Volume 2, Chapter 27:

"Due to a contract with the Guardians, Zahard cannot be killed unless you are an Irregular."

...so I don't think that Baam has the same protection (not unless he manages to make the same contract.)  FUG didn't threaten to kill Baam because they need Baam to kill Zahard, so it would have been an obviously empty threat.