User blog comment:Chrono Nexus/The Chūnin Exams: Finals/@comment-6003865-20150419053100/@comment-3454557-20150419072357

Thanks for mentioning it. I overlooked that in my post.

If a technique is unranked, I am not disallowing it, however, I would like you to ask me to review any techniques you choose that are unranked, so that I can set a rank for them. My default stance is that if a technique is unranked, it's probably going to be C-rank.