We have updated the Team Rating Restriction Match Option on all Ladders to allow for "2 1/2 Stars and Below", "2 Stars and Below", "1 1/2 Stars and Below", and "1 Star and Below" to be selected in order to allow for users to use lower rated teams more freely.

You can find more information here: http://gamebattles.majorleaguegaming.com/forums/showthread.php?p=52653249#post52653249