User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170318142230/@comment-31137559-20170318170718

Barakiel is one of the exceptions. We are talking about the Vice Governor-General of the Fallen Angels. I'm talking about those unnamed unfortunate chaps that have to face exceptionally powerful teams like Rias'. And in the match against Barakiel, Issei could only use Castling once. There are certain limitations for certain teams at certain times. It depends on who they're facing and the type of Rating Games. Look at the limitations placed on Rias' peerage during their match against Sona's peerage. You think they wouldn't do that for this tournament?