Board Thread:General Discussion/@comment-27172747-20151107131413/@comment-3423279-20160308234833

Going by the fact that ALL moisture was evaporated in Seireitei the moment Yamamoto activated his Bankai, Kaien's hypothetical Bankai would probably not do much against Yama's.

Very, very cold ice is much harder to evaporate than water, and yet Toshiro's Bankai and Shikai were gone just as quickly as all other moisture.

Rukia's Bankai at absolute zero might be able to withstand Yama's Bankai briefly, but she would have like 4 seconds to attack him before she died.