User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-34061653-20190122110131/@comment-34061653-20190128080458

@Omega64 Actually your theory of how the match should've been wouldn't have worked. Rias admitted that people from her would hesitate when fighting Asia so she couldn't send Kiba to do it.

Furthermore, even if Ise fought Crom instead of Kiba it would put Rias in a worse situation. It doesn't take 80 minutes for Ise to summon Ddraig. It only takes him 8 minutes and also do you honestly think Crom would allow Rias to help him? Remember that as an evil dragon, Crom hates it when outside people gets involved in his fights. Crom always fights alone. This was shown in volume 18 when Crom got mad at Walburga when she tried to assist him.