User blog comment:Xhatefate/DxD Updates~/@comment-25136646-20140711164200/@comment-24502975-20140711165224

Next time you should probably use the reply button. :P

I doubt 666 and Great Red have met before, otherwise 666 would have probably tried to destroy Great Red in the past.

I don't think the Holy Grail could enhance him any more powerful than he already is. They only need to unseal him and have him fight Great Red. If 666 is completely awakened, however... I have no idea what's gonna happen. But all of the Longinus possessors coming together would be interesting - they'd have to be introduced in the next few volumes though. If not all, then the ones that are already present will suffice. Not to mention we might see the gathering of the Dragon Kings.