User blog comment:Marco the Marine Admiral/The reason why Kyuukimon kills Council Members/@comment-1153699-20131026192723/@comment-7418318-20131027130408

@Woest: Yes he shot balls at Ultear that ate through stone, but you should also remember that Ultear was able to dodge most of them and ward against the one that would have hit her.

Also it only ate through the stone slowly, which would give whoever is taking shelter time to get out of the way, or redirect it, just like Jura did with Brains Dark Cappricio.