User blog comment:B214/Question and Answers 6/@comment-29362784-20161001024143/@comment-114.4.78.82-20161001135434

Not even dimentional Gap can withstand the after effect of  Supreme Ophis vs 666, the reason why all of the leaders like sirzech and azazel tried to prevent 666 fighting Gread red is the after effect will be so disastrous.