Quest / Boss
Room 7 spawns Lich, Zahhak and Nyx.
Goth Idol Kikuri has AoE BB Celestial Firefly, gets an Atk buff at < 50% HP. Inflicts Curse , Paralysis & Poison
Goth Idol Kikuri can AoE with normal attacks after HP < 50%.
Bard Elton has a party buff Ares Requiem which boosts ATK and DEF of all team mates.
Thunder Cat Parmi has ST BB Spiral Scratch
High Roller Zeul has ST BB Joker's Hand
It is advisable to bring a status nullifying unit to avoid having to deal with the myriad of status conditions that may be inflicted.
Target Bard Elton first as his party buff BB will make it significantly harder to kill off the other units due to their increased def and their overall increased atk. Finish off all the other minibosses and leave Kikuri for the last as you do not want to end up fighting everyone with an ATK buffed Kikuri.
Lingering in the Ruins
Room 4 spawns 2x Lich
Duel-GX is pretty easy at this stage and can be cleared quickly.
Can be Cursed, Paralyzed, and Poisoned.
Room 6 spawns Nyx and High Roller Zeul
Lemia has AoE BB Black Hole. She inflicts Poison and Paralysis.
Lodaga has ST BB World of Darkness which can one shot low def light units. He inflicts Curse.
Lemia can be paralyzed
The Endless Blackout
Room 6 spawns 2x Incubus and Vampire.
Executioner Shida inflicts Curse and has AoE BB Sacrifice
Scythe God Alice gets an Atk buff at < 50% HP and heals herself for a percentage of damage done.
Nyx has AoE BB Invasion but does not attempt to give party ATK buff during boss battle.
Take Shida out first as his AoE does the most damage + curse.
Penetrate the Impenetrable Darkness
Those Who Live by the Sword