This just popped into my head now: if he dies right now and Tsunade doesn't save him, Oro can bring him back with Edo Tensei.
Since Onooki is the strongest of the 5 due to his Jinton, but is limited by his old age and bad back and lower stamina and chakra, bringing him as an Edo will make him a lot stronger.
I mean: no back problems, infinite chakra and so infinite (and bigger, more powerful) Jinton and such.
+ Oro still has one Zetsu, so he won't sacrifice a real human to bring him back.
+ Onooki is pretty old and his time to die is pretty close.. I mean he's like 80+ years old, so it won't be much of a loss for him to die.
What do you think about it?
Since Onooki is the strongest of the 5 due to his Jinton, but is limited by his old age and bad back and lower stamina and chakra, bringing him as an Edo will make him a lot stronger.
I mean: no back problems, infinite chakra and so infinite (and bigger, more powerful) Jinton and such.
+ Oro still has one Zetsu, so he won't sacrifice a real human to bring him back.
+ Onooki is pretty old and his time to die is pretty close.. I mean he's like 80+ years old, so it won't be much of a loss for him to die.
What do you think about it?