Board Thread:Game News/@comment-24802353-20140419070613/@comment-10090661-20140420232603

If they're trained and at lv 40, it should be fine. There's really no hard and fast rules. As long as you have attacks that are powerful enough, with Cat 5s you don't have anything to worry about. Particularly since your Opponents aren't ranked in Battles, and yours are.

I have a second Battle Team, with 2 x lv 25s and a 3GS lv 30 Pure -- that works fine, too.