It is the sweeps for ninja exams, having 5 slots for ninja teams rather than 3 and the fact that it give 20 coupons a day for 180 day(or was it 120?) is what makes it worth. I cannot tell you how annoying it is to only have 3 team slots. Having 400 stamina instead of 250 or something lower. I have a page for Tendou TI, Kyuubi, main team to use, GNW team, and ninja exam/experiment team