Can I reset my game to get a Palkia with a better nature?

Question

So I play Pokemon Ultra Moon and just caught my Palkia a few days ago. I saved before the encounter and then saved after that too. I then went back to Seafolk Village Pokemon Center and saved again. Only then did I realize that the Palkia's nature is Brave and NOT what I need. I've lived with it for a while but I now really want to reset to get a Modest nature, as I run it with Spacial Rend, Surf, Aura Sphere, and Earth Power. Does anyone know if I can go back to previous save files to before my encounter? Would really help. Otherwise, I'd need to reset my game. I do have Ultra Sun so could trade my legends over to that via a friend, but I'd rather not reset if there was another way.
Thanks!

Answer 1

You cannot go back to previous save files without restarting your entire game

Comments

Thanks dude!

Answer 2

I think what you have to do is save right before the encounter and soft reset until you get the nature you want. Though I never thought natures really mattered, but to each their own. Just out of curiosity, what nature are you trying so hard to get?

Comments

The question's description says what nature he wanted.

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No I've saved since the enocunter about 20 times and I need to know if I can go back to previous save files.