[quote=DeathstrokeSW]
So what about critically injuring the ten guys I'm beating up with a sealed Zanpakutō? That OK?
[/quote]

^ this. Also upon seeing Kaien's sword, please describe it. I will do the same for you. The only thing that changes in shikai is the hilt wrap color (green to orange), the blade turns black and it is wrapped in black shadows in the shape of flames. 

[img=http://4.bp.blogspot.com/-w8rEREgBzZI/TWFZdILkXkI/AAAAAAAAABE/eq5nn5poGK0/s1600/Bleach_Sosuke_Aizen_Anime_Sword.jpg]