User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-34061653-20181221103950

Rias lost to Issei due to repeating past mistakes. She got involved into too many unnecessary fights which is the same problem that Azazel pointed out in Volume 5. Ravel once said that Rias and peerage weaknesses is facing opponents who are too cunning and in this Ravel definitely outsmarted Rias in this game. Her plan went exactly as she wanted and Rias unknowing fell right into it.

Ravel did it again and proved her worth as an excellent tactician.