User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-108.217.172.134-20190108132254/@comment-2602:306:CD9A:C860:3850:B1B1:735D:18CD-20190108174717

He meant all the teams that Issei's teams already played against. Issei hasn't played against Indra yet. In my opinion, it's a tie between Dulio and Typhon.