User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2607:FB90:4A89:72ED:A0CF:1772:80B1:E181-20190620093332/@comment-1359322-20190623085649

Can her BB heal her though, that's one point to look at as well. The defense aside, if she herself can't be healed, then someone with a means to enter her barrier can instantly take her out.