As stated above, Tobi is a very good Ninja for this. Line him up so he auto attacks the main, so every round you are getting the ignition damage on him, while you use his skills along with the rest of your ninja to kill his team.

Also don't forget on Survival it is super easy to line up a fire main with the earth main and just keep him asleep every round, it also helps keep him controlled so he can't use his mystery until he is the only one left (cause at that point every ninja on your team is attacking him and waking him up). If you don't run a fire main, any ninja that can cause sleep, immobile, chaos, and blindness will stop the earth main from stacking his shields.

Also, even if you had to focus every mystery skill on the other 3 ninja, your auto attacks alone should be keeping the mains shields at a lower level. If you are not doing enough standard attack damage to keep his shield low during the whole fight, you might want to look at ninja that hit harder, or increasing their damage output. This post was last edited by Maroner at 2016-10-9 17:10

If you don't mind me asking, what kind of line ups are you running? Earth mains that run as a tank sacrifice alot of attack damage to do that, after all, they are shielding instead of attacking. Also, unless you are killing the rest of his team in one round, the Earth main should be shielding the rest of the team most of the time, leaving him open to you when the rest of the team is dead. The only other way he is adding a shield to him self is if you are letting him get his ground pound skill off.

As far as survivability goes, what is your main? Each class has a way to add survivability. Wind mains have clones, and the move that resets cool downs (does it also remove debuffs? I've never been a wind main). Fire mains have control, along with a strong clone, or the ablity to remove debuffs (correct? again, never ran one). Lightning mains tend to have the best of both worlds here, as you can run a heavy damage team and heal your self using the ANBU support passive that allows you to leech life with each taijutsu attack, along with yet another option for a clone. Water mains should be pretty clear... they are a great healer that should allow the rest of your team to focus on damage, they also have a option to run a clone. And last you have the earth main that will shield that two ninja on your team with the least health. (PS: Lightning and Water mains add great control, as they cause acupuncture for 3 rounds) Edit: just wanted to add that when I was a lightning main, I loved facing Earth mains, cause all my ninja would be (or very close to it) full health by the end of the battle thanks to the life leech passive, and the fact that Earth mains do nothing but sit there and let you hit them :P

Also if you are running a damage team and find your self having issues lasting, Guy is a good choice as he brings abit to the table when it comes to fighting AI/Auto teams. You can line him up out of the way so he doesn't die early. But his leech passive is great for a high attack team. Along with an interrupt.

Anyways, if you want any help on teams to beat them, I'd be more then happy to help, but almost everyone I've talked to has been able to demolish Earth mains cause as soon as the team is dead, it is 4 damage dealing ninja (3 if you are Earth or Water using your support skills) against one ninja that can't even fight back. When fighting an Earth main, I would suggest going more damage focus, cause I've noticed that once an Earth team loses its main (or one of it's) damage dealer, losing a ninja on your part isn't an issue any more. This post was last edited by Maroner at 2016-10-9 18:56

Debuff ninja work really well, but ninja that do lightning damage have bonus damage to Earth ninja.

As far as a team, You have to look at the over all team you are facing. If the team is an Earth main and 3 Pains, then you need high damage out put, combos, and a healer/debuff remover most likely. If you are up against a pain, with a healer, damage dealer, and off tank/damage, focus more on damage and take out the main damage dealer/combo'er first, followed by the healer unless the off tank/damage dealer will hurt you too much.