sasuke passive consumes chakra at the end of the round, kushina passive scales when the ninja use mystery which cost chakra the only way sasuke will benifit from kushina passive is to use the +2 mystery which is the one that isnt spammable and have 2 rounds cd, instead of using the one that make it 0 chakara if u have your chakara over 70 and have no cooldown. so having these 2 together kinda dont work well