My lottery rank is 10 and honestly I have the same odds that I always have had it seems. --- "As I was walking up the stairs, I met a man who wasn't there, he wasn't there again today, i wish I wish he'd go away."
I have two level 10 lotteries, and have never got any Master Balls, even when I've had the promotion going and got two tries per day. I have got a few Rare Candies, though. --- STOP CALLING ME HOME ROWED i don't even gaf anymore
Oh, and I don't think the overall level of the Join Avenue has anything to do with the prizes you get; it's just the level of the individual shops. Mine is at level 100 and I still get Berry Juices and Full Heals all the time, even with level 10 lotteries --- STOP CALLING ME HOME ROWED i don't even gaf anymore