Hinoka (+HP, -Def) with Hinoka's Spear, LaD2, HP1 seal
Camilla (+Spd, -Def) with Res Slaying Axe+, Reposition, Goad Fliers, Distant Def 2
NY! Camila (+Def, -Res) with Def Slaying Edge+, Bonfire, QP seal
Myrrh (+Spd, -HP) with Hone Atk 2, Drive Def 2
For this run, Hinoka needs her spear + at least LaD2 + Goad support to double Ursula and take her out. To ensure her survival when the daggers target her, she needs HP1 seal (+HP nature helps, though can be subbed using Summoner support) and a Drive Def 2 from an ally. As she will survive with this set-up, Camilla on the other hand will need the Drive Def 2 support as well + Distant Def 2 seal to discourage the daggers from targeting her. The seal will also help her tank the mages.
NY! Camilla does most of the killing and Myrrh helps with clean up.
Walkthrough: https://imgur.com/a/3uy5K
Play by play:
1p-Hinoka hone buffs the team and moves into to bait the lower dagger. Camilla destroys the closest wall to open up the way to the annoying cavalry. NY!Camilla and Myrrh gets into position for another Hinoka hone.
1e-Lower dagger hits Hinoka but can't double due to LaD2, Hinoka's Spear and Goad buff. Green cav hits Camilla, get's drawn back by the sword cav opening tile for Ursula to get another potshot in. Upper dagger and armor knight moves closer to the team.
2p-Hinoka doubles and KOs Ursula. Camilla moves to reposition her seasonal variant forward to the battlezone. NY!Camilla eliminates the annoying green cav. Myrrh gets into position to support the team with Drive Def 2.
2e-Sword cav duels NY!Camilla but is beaten off the map. The two daggers double team Hinoka but she persists with 2 HP! Armor knight can't move forward.
3p-NY!Camilla ends the lower dagger's participation in this fight. Hone buffed Myrrh takes care of the second one. Camilla repositions Myrrh to safety so the armor knight can't reach the team.
3e-Armor knight moves in but there's nobody to attack! In anger, he destroys the cracked wall.
4p-NY!Camilla uses the space created by the destroyed wall to hit the knight with a Bonfire. Myrrh finishes the knight off to end the battle.
Melee fliers are victorious!

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