User blog comment:Xilinoc/Ch. 567 (Rukia be like "I ain't even scared though")/@comment-5147109-20140207231148

Looking at Rukia's Zanpakuto true abilities makes me think, if there was ever a Zanpakuto that could stand up against the heat of Zanka No Tachi this would be the one as, unlike Hyourinmaru, Sode no Shirayuki does not require moisture to work, it simply lowers the temperature, which if Rukia could perform that against the Heat Shield (I think it was Zanka No Tachi: East) then it might provide just enough of an opening for (maybe) Ichigo to attack with everything he's got.