User blog comment:B214/Volume 22 spoilers/@comment-50.139.232.230-20160721023809/@comment-9595671-20160721032859

If I remember it right, didn't Rias' team technically lose points (or something similar to that) when they faced Sona because Sona's tactics against them made them struggle?

They did only win due to Issei's new Booblingual trick exposing an important part of her plan after all.