Bab 1382: We Meet Again.

That explanation didn't ease Legion-7's pain though. He still grumbled, "If this was going to happen maybe I shouldn't have united with him. Maybe I should have let CARNAGE have him."

Legion-5 chuckled. He knows that Legion-7 doesn't mean what he said. If the priority was avoiding pain, then letting CARNAGE have Ragnarok would be far worse than the pain he is feeling right now. In fact, all of Legion would feel that pain, and they may never come back from it. 

Ragnarok's smug laughter rang in their minds immediately. "Turns out that I beat you two cheaters to immortality. You might have become a Sovereign of law first but only those that are truly worthy get to become Origin gods."

He was already a Sovereign when Legion-7 saved him from the clutches of CARNAGE's evil hands. He also already had an Origin essence given to him when his soul was split from Legion-1 so he had met all the requirements to become immortal.