main sb is good. kakuzu trial would be good from 3* what will never happen i bet. events are more less good. but add skill trials with normal items. half of summer went and i have skill trial task for seasonal system on 4/20. add low tier ninjas skill breaks and trials. also trials for ninjas that already have breaks like hanzo, mei, normal gaara, kushina normal tobirama, danzo, sasori, fu yamanaka, sasuke suit, jiraya and orochimaru sanin war etc

if you have kakuzu 4* then yes i guess