User blog comment:Stbk22/Possible Power up's/Techniques for then new group DxD/@comment-1884090-20140204160946/@comment-1359322-20140205112513

Like i previously said, i don't think Issei would be the one fighting Rizevim, it's either Vali or Sirzechs or maybe even the Four Great Satans together depending on the situation.

For me, Issei's opponent should be Euclid and the Evil Dragons. I don't know about others but that's my personal opinion, mainly because i want to see a Lucifer vs Lucifer, Sekiryuutei vs Sekiryuutei, Dragon vs Dragon battle.