Octopath Traveler COTC [SEA] Hunter Training EX5 (5F EX1) (First Clear)

This tower's gimmick is about break the boss by dealing critical damage.
Every 3 turns, the boss will activate her non-crit barrier and ready her Ultimate. Furthermore, at the first turn after her recovery from break. She is going to blind 2 units at random.
The adds can inflict bow resist down and paralyze. Try to break and kill them with AoE attack before they have a chance to act. Once the boss has recovered from Break, they will always revive on the next turn.
Boss weakness (Shield 23)
spear, dagger, axe, bow, staff
Adds weakness (Shield 8)
bow, fire, ice, light
Once boss HP is reduced by half, the Adds will be changed.
Adds2 weakness (Shield 4)
sword, spear, fire, ice, light
The heart of this play is to reduce the boss's shield to 1 in 2 turns and, once she activates her non-critical barrier, break her with Ashlan's or H'aanit's guaranteed critical skill. Thus, Ashlan and H'aanit should be your roster's fastest units.
The adds can be annoy. Try to break and kill them with AoE attack along with the breaking boss process
Once boss HP is reduced by half, the Adds will be changed. Additionally, this new one has 406 speed that faster than the boss herself. You need to have breaker that can out speed them if you want to stop them from paralyzing your unit.
Also, you have extremely limited options for breakers because they are not weak to bow. I suggest using Lucetta 2-hits ice AoE and Yunnie's Evening Calm Assault.
Yunnie can easily out speed(406) the adds with an additional speed accessory. However, Lucetta needs a King Chomper Vest and 2 +30Spd. accessories.
The majority of the boss attacks deal Physical damage. so equipped for the P.def focus equipment. And ensure to equip HP Regen accessory.
For character we require a lot of AoE breaker.
Scarecrow has 4-hits AoE bow.
H’aanit has 3-5 hits AoE bow and guaranteed critical to break the boss.
Jillmeila has 3 hits AoE bow and powerful NUKE.
Yunnie has 4 hits sword, spear, axe and bow (boss weak to 3 of these) and 2 hits bow + 1 hit fire AoE
4 stars Camilla has 2 hits AoE bow and ST heal.
Chole has 3 hits AoE bow + 10% P.Atk up for front row,
AoE heal,
15% Bow resist down,
Powerful NUKE that can heal your front row,
and a priority heal provoke that allows you to choose which unit the boss will put her blindness on.
Z'aanta can be a good nuker and breaker when the adds down.
Kresjes has powerful NUKE and a lot of Bow resist down debuff.
He can also use his 2 hits ice AoE, similar to Lucetta, to break the adds in the second half.
4 stars Ashlan can deal guaranteed critical to break the boss.

[@SpearOfSalvationCoTC]

Well done! You did much better than my first clear 😊

[@KamechaCotC]

Thank you. I have a lot of reference from GL players.