Finally cleared it, I still cant believe it. #WildfireFTW

Screenshots: https://imgur.com/a/ozHRYAy

Party:

• Estelle (Estelle) - Heals and add combo with Grand Chariot
• Sorey (Summer Kannono) - Wildfire every 3 turns
• Luke (Stahn) - Adds combo, helps in breaking
• Asbel (Summer Patty) - Eats a targrt every 4-5 turns.
• Norma (Forest Reid) - Heals and Buffs (only lv 3 on both)
• Lloyd (Lloyd) - Meat shield and damage (look at that almost 4k def)

Notes:

• Target would be Kannono > Luke > Velvet > Yuri
• Thanks to Summer Patty giving 95% on Crit Damage, I have to properly time Asbel with his Plasma Shock and then Mystic Art. When those 2 crit, it usually can take down 80% of a target's HP.
• On burst round, my sequence goes like this: Grand Chariot > Sword Rain Alpha > Burning Havoc > Luke Mystic Art > Plasma Shock > Asbel Mystic Art. With this rotation, Asbel has 60% boost in damage on top of Summer Patty's damage boost.
• I chose Kannono because we know how useful Wildfire is and it is equally dangerous when used against you especially Velvet doing strong damage on whoever. Luke next to avoid any AOE and better chance of survival of any critical character.
• Norma has been extremely helpful on upper stages of tower. With proper timing of buffs with burst rounds, its possible to KO a target.

Video run:

https://www.youtube.com/watch?v=oj5IS7QVMPs

Random rant:

• I hate how the game just ends your round no matter how much you tap manually on Mystic Art that with the less than 1 sec, it wont use Mystic Art.

EDIT: Luke > Lloyd at the end.

EDIT 2: Added Video recording.