I had 2 arena missions of usings 2 non chase ninja and 1 non promt ninja and so I had a bad team from the start and I get for a 10 minutes nothing but Angel Konans and Shark Kisame's with the occasional Kushipachi blitz. So I lower the difficulty of the missions and switch to my main team and within a 1 second I get someone using 1* team 7....I mean come on what are the odds.