Just to add something: both the passive and the mystery are +2, so you need 300 more fragments of him if not 400 to actually be able to use him that way so the 18k coupons ninja became a 90-100k ninja. Moreover kakuzu is not immune to debuffs by default, so any fast round 1 cc makes him useless with decent control stats. Is not different from a slightly boosted angel god konan.

Remember also that shark bomb in 5.0 steals chakra and that sb immobile mystery immobile even immune ninjas, so you have your reply.

Of course, but maybe you did not figure that here they try to make money out of anything. So, once we will get his breaktroughs, do not worry that the new skillbook system will not be yet introduced here (the mood dango only system should ring a bell in you. Where is in our version?)