Your own zanpakuto

bossul12345

My zanpakuto:Name: Kori no Hana (Ice blossom)
appearance: Japanese katana sword with Blue handle and blossom form bend.
Release comand: Freeze the Sun Kori no Hana
Shikai ability: The appearance doesn't change, but ice steam is going out of sword. While using shikai you can freeze anyone in your way, the max temperature is -273°C(0°K), basically zanpakuto can reach absolute zero.
Bankai name: Toketsu shi Kori no Hana (freezing death- Ice blossom)
Bankai: Sword takes appearance of scythe with light blue staff and White as snow blade. This zanpakuto is realy dangerous not just to enemy, but for user too. Zanpakuto cansurpass absolute zero what is physically impossible in your world, and kill anyone who is 1km near to user. If user use it too long, he just freeze and die.

bossul12345

Anyone have more ideas?