Monsters
Some information about the dungeon's monsters:
Bestial Brockhard
BlΓ©rauve
Lvl 181 to 189
Icy Brockhard
BlΓ©rice
Lvl 183 to 191
Nightcrawling Brockhard
Croleur
Lvl 184 to 192
Pyrotechnic Brockhard
Fleuro
Lvl 180 to 192
Gluttonous Brockhard
Wolvero
Lvl 181 to 193
Venomous Brockhard
BlΓ©rom
Lvl 182 to 190
Rooms
Room 1
Icy Brockhard
Venomous Brockhard
Venomous Brockhard
Gluttonous Brockhard
Room 2
Venomous Brockhard
Venomous Brockhard
Pyrotechnic Brockhard
Nightcrawling Brockhard
Room 3
you just need to walk through it.
Room 4
Venomous Brockhard
Nightcrawling Brockhard
Kolosso
Professor Xa
Boss
Kolosso β
Lvl 190
Professor Xa β
Professeur Xa
Lvl 190
Dungeon mechanics
As you will have understood, your main enemy in this final room is Professor Xa, and the difficulty lies in managing healing. You will need to make good use of Professor Xa's spell to heal yourself, while avoiding being attacked by the boosted monsters, which can hit very hard.
Fight strategy
To start, kill the Venomous Brockhard, then the Nightcrawling Brockhard, while keeping Xa β and especially the Kolosso β at a distance. MP removal and repositioning classes (Cra, Sadida, Enutrof, Sram) are welcome. You can also keep the Kolosso busy in a corner using a double, a Sacrier, or a blocker transformed into a tree to buy time and save your AP during the first turns.
You will need to kill resurrected monsters as soon as they come back into play, as the Kolosso can heal them and the fight can quickly turn sour. Ideally, keep the Kolosso away both from you and from the monsters.
Then comes Xa's turn: his death ends the healing you could get from his spell, but also boosts the Kolosso. To make the Kolosso vulnerable, it must be attacked by one of your summons. All that's left is to keep it at a distance and finish it off calmly.
End of the dungeon
Talk to the Professor to leave the dungeon.