User blog comment:B214/Question and Answers 2/@comment-24098614-20140605224251/@comment-1359322-20140606122658

Well since one gets send to the Heaven, while the other is detained in the Underworld, if they somehow escape and wreck havoc, both sides would have it hard since they can't ask for backup from the other side, plus Grendel might just be a catalyst for the Dragon Gate to activate so that Rizevim can attack the Heaven, then he'll leave Euclid to cause havoc in the Underworld. Of course it's just my wishes. ( ,_,)