Hi :) I have a rather in-depth question for Platinum, although it applies to more games I guess.
I still have to catch Cresselia on this game (relatively new file :p from a month or so before the release of XY), and I figured I'd try to get a good nature and good stats this time. Problem is, of course, that she's a roaming mon so simply SRing is a lot harder here (I already caught Cresselia on White 2 and I don't have a copy of Black 2, that would have been a lot easier).
Specifically, I need to know when Cresselia's stats are set (and any roaming pokemon's, for that matter). Are they set when triggering the event (i.e. on Fullmoon Island/for the birds when talking to Oak/for Latios in Emerald when telling your mom its colour, etc) or are they set when first encountering it in the wild? (Yes I have googled this, but the answers are conflicting and Bulbapedia doesn't mention anything.)
(I know Synchronising for the nature doesn't work on roaming mons, so trying for a good Cresselia may very well be one of the dumbest ideas I've ever had lol. Fortunately she's got like 5 viable natures and I don't really care which one I get. At least I'm not trying for a good Raikou in FRLG.)