User blog comment:Ixarising/High School DxD Dream Battle/@comment-112.211.199.137-20140208063905/@comment-1359322-20140208092948

Sirzechs. Supposing if Issei and Vali fully master their current power, it could only put them at an Ultimate-Level Devil/Angel at best. Kinda hard for them to take on much less defeat Sirzechs in his true form who is one of top 10 strongest beings in the world.