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I can get you a leafeon, a glaceon, a probopass, a rotom, a drifloon, or magnezone, all of which are unobtainable in SS. I understand that maybe these aren't worth a shiny Suicune, so maybe choose some amount?
Unfortunately, I have neither. I'm replaying Platium because I was bored, so I don't have access to route 222 yet. I will probably be there sometime this week if you can wait, though.