>>49969501
C3 Marisa is a Yang Attack battery. You only need her for her Graze, Boost and Skills. Her damage ceiling is really low and has bad killers, so keep her at level 70 and she will still be useful.
I'd like to say that C3 Satori is one of the worst C3 units, but then there's C3 Shion and C3 Komachi. Satori would be good if this game was about tanking attacks instead of just grazing them; kinda made for another game, basically. Her damage is ok and has fair killers; also she got buffed with party Yang Attack II in her third skill, but her anomality breaks are really bad. She's not worth to MLB for Epic Dolls. If you want a metal nuker, wait for C3 Sakuya or C3 Myon instead.