Some follow up information:

- scaling passive requires dead ninjas (either on your side of enemy side). Clones, puppets, summon and all the other things that die dont contribute to that scaling.

- repulse deals causes 50% of initial damage target receives to backline, so backline gets hit for 100% of mystery damage + 50% of damage your target receives. If your priority target is behind something that doesnt have super armor, hit that something instead of the target. You'll do more damage with repulse than with full chase combo. Hitting a clone or a dog (that has low base stats) can make repulse deal more damage than mystery itself.

- due to mentioned repulse, Y mystery susanoo deals more damage than rinnegan sasuke.

- if you get flame control +2/Y or standard attack+1 before scaling/mystery, lock it. Even though scaling and mystery are essentials and should theoreticaly be prioritized, they are actually easier to get than previous two.

@ICE small error in your 3rd lineup. Dog of hell is a summon for susanoo itachi, not edo. With edo no summon is required to link chase, so its best to use multihit like koh or gamariki. Also that Fu Y+1 mystery in simulator - hopefully that's a hint Fu's trial is coming soon ;)