For a good strategy you can do first row blank blank blank 2nd row blank Neji Lee 3rd row blank fire main or water main Kakashi then have water mains skills as mystery Super Shark Bomb Jutsu Attack Water Flowing Whip or Flowing Water Whip (I don't remember what it is called) Chase moves Chakra Dissection Blade Enhancement Of Water Style Ninja Water Clone Jutsu and summon: Ninja cat
I hope you enjoy!! :)

Why no healers the best mains are lightning and Water, water for the heals and lightning for the leach :D