Hello, please post a picture of the ninjas you currently own next time so people can help you with possible lineup. Also, do look at Narulith's guide for earth main as he has many awesome lineup there:
http://forum.naruto.oasgames.com/en/forum.php?mod=viewthread&tid=3574&extra=page%3D2

I'll also move your thread to strategy section as there are more people who can help you there.