Is there any way to change latias' in heartgold?
I recently found my brother's old heartgold game and as I was looking through his account, I noticed that he still hasn't caught Latias. So I caught it and when I looked at what nature it was, it was naughty natured. I was like OMFGWTFISDIS?? So I reset my game and caught latias again and I looked at the nature and i was like OMGGGWTF cuz it was naughty nature again. I tried it 2 more times and the nature stayed the same. I even tried using my synchronizing modest alakazam and caught it with a master ball but it's still naughty. I need to change her nature because I realy want this latias to be a good sweeper in my pokemon black. Do I have to kill it and beat the elite 4 again or something? TELL ME!
If there is no way of changing the nature, what do you guys think would be a good moveset for a naughty latias? I'm thinking sucker punch should be in the set cuz its physical.