Hey,

If you can try to save even more coupons and try to use them on luck board only and only when you have enough coupons to get a ninja you want!

The reason being, lucky board offers amazing power including the potential of getting exotic ninjas that are difficult to obtain.

I only spend my coupons on luckboard as I only buy the monthly pass.

You can buy tenten gnw or iruka both are handy ninjas

save your coupon to buy your needed as rare ninjas or you c*e it for upgraded your materials ( magatama etc ). You'll needed so much...so used wisely

Your best bet is to invest in the lucky board event. It is by far in my opinion the best event the game has to offer. You can get seal and summon scrolls, magatama and other goodies plus the redeemable rewards can be nice.