Here is my line up that I find useful. The reason I like is because Karin has Quick Healing Jutsu that also removes a debuff (ignite, poison, etc.) on one person. Naruto and Kakashi have clones that can create a wall of defense that cushions *s for the first round. Lastly, this line up does really good with float and knockdown/back juggling. I highly encourage you to experiment though. Fight with members of your group to adjust and tweak your line up to your liking. There are many different ways to play the game and I encourage you explore and find those ways