nothing in this event is worth spending on.the ninja they are given away are far out of the meta and you would need alot of bp to make the ninja work.the only thing that maybe worth are the refine's you can pickup in naruto's BDAY the rest of them are not worth it unless you have money to burn then go for secret shop and buy asumaWB he's a good ninja to use.or you can just save your cp/ingot for a better event that will give you more power