Quote Originally Posted by andyizcool
If they sharked some form of Missingno and have it on their Secret Base team you might be in a bit of trouble when you battle them. Other that a few things other people have said it won't have much effect on your game unless it's being directly hacked.
Some of the people that I know Shark/use AR to get 99 of every berry (including Enigma Berries) and some hidden legendaries like Deoxys and Lugia. For all I know, they could have Bad Eggs/Missingno (I'd make sure they weren't in their team). I'm trying to keep my game clean... the only things that have ever happened to me to possibly corrupt my game were someone trading me a Feebas that I found to be holding an Enigma Berry and caught on the route right before the one on which it can be caught normally (I tossed the berry, checked the routes when I got home, and then released him) and I've blended berries with someone who had sharked 99 of every berry and Enigma Berries (they used a few of their Enigma Berries in the blending when we tried to make the worst Pokéblock that we could). These happened a little over a year ago, and I've never seen Missingno, Bad Eggs, or anything like that, and I want to make sure I don't in the future. Some of the people I blended with are the people I want to swap with, and I guess I'm still not sure whether to go ahead with it or not.