Note: Requires White Boa

Here's the tip to defeat this optional boss deep inside the Temple of Enlightenment.

During his first turn, he will use Obsidian Ceremony to summon an Obsidian Miasma. Casting support skills here can be troublesome since he loves to use Delete to remove all beneficial effects from your party. Also, he wont be targetable while the Miasma is active. Concentrate your attacks to it first. Equipping Spirit Killers will be a great help in this battle.

The Miasma shouldnt take that long to defeat; especially if you often land perfect strikes with the Spirit Killer 3+ active. You can also cast Divide to defeat it faster. After the Miasma is defeated, the Sorcerer will summon two more reinforcements.

These enemies are weak to fire to have your mages dual-cast Flarus. Having Fire LV3 skill like the Sun Ring or Flare Ring can deal enormous amount of damage to the targets. Each of these souls have around 22000+ HP, making a formidable GC wall for the sorcerer. Fortunately, these guys can be disposed easily within 2-3 turns. Once the two targets are down, start attacking the Spirit Sorcerer Fu. He has some really good attacks so dont let your guard down. Heal often as All-Generatus is your friend in any battle.

After the battle, you will obtain LV8 Spirit Magic: Sacrifice Self.