User blog comment:Ixarising/High School DxD Dream Battle/@comment-24421137-20140128015808/@comment-1359322-20140128174647

I don't think it's so easy as you think, as mentioned by Sun Wukong in Volume 16 to Vali.

"“That’s true. It definitely will reach them. In terms of power output, you will reach Gods from each faction. —But that’s it, right~? If you don’t have the stamina to maintain that, then it’s just a waste of your ability. How many minutes can you maintain your so-called Juggernaut Overdrive? Maybe it will be in terms of seconds?”"