You know the mascot for HeartGold the one you either have to faint or catch to move on.If its shiny when i get to it and i make it faint then beat the Pokemon league to make it come back will it still be shiny.
I think it will, last time I checked all the IVs and Nature Etc stay the same every encounter. So it should stay shiny.
Source: Logical reasoning by the fact that Roaming Pokemon stay the same so it should apply here too.
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