Originally posted by carver9this doesn’t even make sense.
Your post doesnt make sense. Hulk merging back with Banner is the reason he was able to escape hell, it had nothing to do with the One Below all. Hulk closed the gates behind him and escaped.You're question is like me asking "Shazam defeated Eclipso so how was Eclipso able to possess Superman". Lol, he came back, jumped into Superman body and possessed him. Simple.
We never saw TOBA, banner was still speculating about his existence but according to you the hulk has already defeated him. I’m gonna buy the series and just put a stop to your lying.