found a wi-fi hacker
i dont even fight competitively lol
do i look like i hack things
Anyways, my brother discovered a way to reset for both Rayquaza and Deoxys despite the fact you don't get to save after catching Rayquaza. All you have to do is to faint Deoxys then check Rayquaza to see if it has the nature you want. If you're fine with it, save then challenge the Elite Four again then you can rebattle Deoxys.
thats like old news by now but good 4 people here who need a quick ref.