User blog comment:Xilinoc/Ch. 602 - Bane Licking Good/@comment-28861328-20141023151805/@comment-24963493-20141024061526

I feel like their Blut is just implied at this point, and that it's supposed to explain why they have really strong attacks and defenses. Also, I think only some Quincies are supposed to be able to use it, though I'm sure all the Stern Ritter can. Maybe it'll play a bigger role in the fight between Ichigo and Yhwach.