Zanpakuto Ranks

Zanpakuto's hold a rank of there own, ranging from level 1 to 10 one being the weakest and ten being the strongest.

Zanpakuto
Level 1~4 are too weak to know there own name. Thus they are given one title to all of them.
Level 5~ This level is weilded by a majority in Soul Society. Those who weild this level of Zanpakuto are none seated. They can use Shi-kai but can NOT access Ban-kai. They do know the name of there Zanpkuto.
Level 6~ More powerful then five and able to access Shi-kai.
Level 7~ Able to access Shi-kai, and if capable of knowing it Shi-kai second release.
Level 8~ Able to access Shi-kai first and second release, as well as Ban-kai first release however ban-kai can be held for the duration of three posts.
Level 9~ Able to access Shi-kai first and second release, as well as Ban-kai first release and hold it.
Level 10~ Able to access Shi-kai first and second release, as well as Ban-kai first and second release, and hold it.