A line up I'm using right now is:
Kurenai Main Hinata
X X X
Karin X X
Mystery: Giant Rasengan
Standard: Wind Style: Gale Fan
Talents: Shoot Down Rasengan, Flower Guard, and Queen Momentum
Summon: White Tiger
Tactics: Sun Move
It works pretty well because Hinata can do acupuncture and her barrier thingy on the opponents, Karin can heal + poison, and Kurenai can mirror the first debuff, make a shield, and heal a selected unit for her mystery attack.