[@Raijinslayer] Just a quick note on top of Dion's.
-The fuinjutsu eyepatch. Now, don't get me wrong, I love me a good ol' eyepatch character. But, to be frank, I'm not sure what it [i]does[/i], y'know? Sure, I pretty much get the whole Akito/Agito-esque personality thing, but I guess that begs the question of [i]what the hell Yurei is[/i]? Because, considering the fact that (barring it possibly being purely a placebo) it seems to seal Yurei away in some fashion, I'm left to assume he's another being residing in Shizuka like a bijuu.
If Yurei's just another facet of Shizuka's psyche/a manifestation of Jugo clan craziness, then it seems weird for the eyepatch to have any real sealing properties unless it's some kind of power limiter intended to keep Shizuka and, consequently, Yurei docile.