The typically one is Sasuke Guy kakashi. Having Sasuke in the first position and make it so kakashi clone is in the front row so you can trigger lighting armor and barrier turn one. Just auto after you set barrier then guy and kakashi round two. Up to you to use the barrier after everyone attacks turn 3. Not a huge difference in damage without using it.

Just an FYI f2p Ninetails with lightning is hard to keep up with the damage water wind and fire can put out having 10 hit chases