Board Thread:Spoilers!/@comment-37795520-20181212133410/@comment-1826156-20181221055155

I think the first post explains it, it was self defense. There was no other way to deal with Regina's knights at the time. If the option to KO them with magic powder was available, I'm sure that would have been used instead. Are all of the Black Knights human or are some Regina's creations? I've never been sure about that since they are almost treated like golems or throwaway monsters from Power Rangers by everyone.