StrikeNinja24
Banned
I just cleared it with this strategy, except I had a 4* Felicia in place of the Peri. First few turns ran fine with Camilla taking out the north ninja and MRobin taking out the green knight.
I think Ursula actually hit Robin when she went in, instead of going after Felicia. I took her out with Camilla, but the south ninja and red cavalry guy was still there. I think I did something weird like making Robin go in to land a hit on the ninja, then danced Robin with Olivia to get Robin to safety (he was down to 1 hp), then moved Felicia in to both finish off the ninja and bodyblock the choke so that the red knight couldn't go in to hit Camilla. The red knight severely injured but did not kill Felicia on the enemy turn.
Next turn, I moved Felicia to the left to safety (she barely survived the turn), moved Olivia in to attack the red knight, and then had Robin hit the red knight again to finish him off.
I actually just completed it by sticking in Maria with Physic. She was able to sneak in after Camilla took some damage after taking out the first ninja at the top of the screen, and it was enough to have her survive.