Ouch. Innocent. Just saying.
Round 1: Geo gets hit with innocent = GG. The terrain, innocent procs, my ninja being killed by the archer every time he was revived, and my geo being unable to use fairy is what hurt me.
Round 2: Andante's archer dying from a crit and my geo being able to sucessfully keep away from being poked saved me here. Also, my ninja was able to do his thing. The counter-platina dagger ending was pretty funny.
Round 3: Ninja is a liability because not only did he not get a platina dagger proc off, but he wasn't able to stay alive because the archer kept killing him. Geo gets hit with innocent AGAIN when everyone else was dead, which seals the deal.
Ninja could use some evasion, but I don't know if taking away the salty rage is a good idea since he won't attack as often and I want those procs. I could take away some move so he's not so far ahead of everyone else. Also, innocent is a very trolly status and those procs REALLY shouldn't be 100%. Usually, my geo would heal the team with moogle, but innocent messed up my strategy big-time. I tested this against primarily slower teams (namely, my teams so about 8 or 9 speed all around), so that may be a factor as well.
You could always go for hidden knife + platina dagger. That way instead of using concentrate you can swap it out with attack or defense up pending on if you want your ninja to live longer and kill things faster