This is the only earth main team I can think of at the moment. It's best when you have Kushina and Edo Roshi 4 star and skill broken (at least +2 on Kushina's passives and Edo Roshi's barrier and healing passive). Don't think I would use this team unless you have Kushina 4 star.

Skills (3 star Kushina): 4,3,1,2,1

Skills (4 star Kushina w/ +1 chase): 4, 3, 3, 2, 1

Summon: Lightning Tiger King