Overview

Stats

Dragon Storm has a Force Pierce effect on the skill that is missing in the skill description.

Confirmed by Reika.

Team 1:

Speed & Support	Speed & Support	Phys DPS	Support
Kartikeya	Hell Biker	Yoshitsune	Abaddon_A
Offensive Cry		Epitome of Carnage	Luster Candy
		Butcher

Kartikeya helps you reach the 30k battle speed required to start first, and provide additional accuracy for Yoshi.
Hell Biker need divine brands and maxed Red Zone to cast it thrice in a row.
Yoshitsune requires Panel 2 for triple Hassou Tobi. Panel 1 is highly recommended for the additional accuracy.
Abaddon Alt is used for auto-debilitate. Blood Rush or Tarukaja can be used in place of Luster Candy.
Use either Eileen or Kangaroo Boxer as D2. The former has a chance to generate random press turns from Hassou Tobi, while the latter gives a slight STR bonus to bump up Hassou Tobi damage.

Team 2 (Megakin as D2):

Phys Reflect	Anti-Pierce	Force Reflect	Phys Reflect
Quetzalcoatl	Alilat	Mastema	Rangda
Defensive Cry	Lydia	Tarunda	Lydia
Mediarama		Rakunda	Rakukaja

Quetz is required in Teal for Reflect Physical. He is used as a support here, giving you buff control and an emergency party resurrect. Defensive Cry is the most powerful buff/debuff combo spell, swinging defense entirely to your favor.
Alilat is your anti-pierce unit. Lydia is great for attrition battles like these as it has no usage limits.
Mastema provides Reflect Force and can act as buff control in a pinch. He can be replaced with other Reflect Force units like Teal Long, but they lose out on the additional HP panels provide.
Rangda is your second Reflect Phys + Lydia unit. Teal Gogmagog with Resist Force + Lydia is a strictly better unit, use him if you have him!
Megakin D2 increases reflect damage dealt.

General strategy

There is a save point near the boss. Use it to reduce the number of steps required to reach him (in case you need to tweak your party).
Try to get to Force Berserk level 60 to soften up Dragon Wind.
Lead with Team 1. Pass Kartikeya's turn and cast Red Zone. Cast Hassou Tobi on Yoshi's turn and Luster Candy on the half turn. Pass again on Kartikeya, Red Zone and Hassou Tobi. On the last half turn, switch to your second team.
- This effectively lets you take another shot at the boss with the same team later.
How Team 2 performs largely depends on luck. On some turns, Long will do nothing but Dragon Tooth into your reflect units, damaging himself and burning press turns. On bad turns, he will relentlessly Dragon Wind and outdamage your Lydia heals.
- Load up your demons with HP% Life Brands and Panels if possible. The higher your max HP, the more mileage you get out of Lydia.
When the team inevitably falls, Team 1 will get switched in. Cast Offensive Cry and Red Zone to buff up Yoshi and hopefully give you enough damage to clean up the fight with one last Hassou Tobi.